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Rheem Furnace Review: Pros, Cons, Performance, Top Picks

January 7, 2022 by Sindy Aubrey

Rheem is a global producer of HVAC equipment with a history of innovation. Your Rheem furnace options range from inexpensive 80% efficient, single-stage furnaces to the Rheem Prestige R97V 97% furnace with modulating heat and a variable-speed blower.

This Rheem furnace review will assist you in making an informed decision about this brand and its products. Rheem furnace pros and cons are included along with top models at each performance level. You might also be interested in our Trane furnace review that allows you to compare these two leading brands head to head.

Rheem Brand Overview

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In 1930, brothers Richard and Donald Rheem, with financial backing from third brother William, incorporated the Rheem Manufacturing Company. The company originally made steel tanks but soon began producing water heaters and boilers. It wasn’t until 1947 that Rheem got into the residential heating and cooling business by acquiring the Frazier HVAC company. In 1960, Rheem acquired competitor Ruud Manufacturing. Today, Rheem manufactures a wide range of mechanical equipment for residential and commercial use.

Rheem Furnace Technical Specifications

Here are the most important specs including gas valve operation, blower performance and efficiency for Rheem furnaces:

  • ​Single-stage gas valves always open to 100%, and this creates temperature swings as the furnace heats passed the thermostat set point.
  • Two-stage gas valves open to 65% of capacity to maintain even, quieter heating, and open fully when a boost in heat is needed.
  • Modulating gas valves, called variable-capacity valves by other brands, vary from about 40% capacity to 100% capacity, modulating like cruise control to deliver precise, even heat.
  • Single-speed blowers run at full capacity all the time, so they are loud and push unheated air into your home at the beginning and end of the cycle.
  • Multi-speed blowers start on a low speed and get faster and slower in stages as the combustion box heats up and cools down.
  • Variable-speed blowers match run speed to the performance of the gas valve, so speed up and slow down incrementally during the cycle.
  • ECM motors use less electricity than PSC motors and are employed in better Rheem furnace models.
  • Rheem makes 80% single-stage and two-stage models and 90% to 97% furnaces with two-stage and modulating heat.
  • Rheem’s new, patented heat exchanger is included in its better models and reduces operating noise by 20%.​

Pros and Cons of Rheem Furnaces

Here’s an overview of the advantages and disadvantages of buying a Rheem furnace

Rheem Furnace Pros

  • ​Rheem innovation puts its top furnaces at the head of the class for efficiency and quiet operation.
  • The furnace lineup offers models for every climate and budget including low-cost 80% to 92% Rheem Classic models, moderately priced Classic Plus models up to 95% efficient and Prestige Series furnaces up to 97% efficient.
  • Rheem Classic Plus and Prestige Series furnaces will last for 20+ years when properly maintained.
  • A Rheem furnace can be repaired by any experienced HVAC technician, not just Rheem specialists.
  • Upflow, downflow and horizontal flow models are available to fit any installation requirement.
  • Rheem furnaces are made in a range of BTU capacities to serve spaces up to 2,500 square feet.
  • The most efficient Rheem furnace models qualify for rebates from many energy companies which can be searched here.
  • Oil furnaces from Rheem are available if preferred to a gas furnace.
  • Rheem also makes heat pumps, central air conditioners, thermostats and air quality ventilators, so any home can be equipped with a split system designed to work together for superior efficiency and climate control.
  • The EcoNet coordinating technology improves the efficiency and performance when Prestige Series components work together.
  • The Direct Spark ignition system has an excellent track record of reliability and durability.
  • Built-in diagnostics provide quick discovery and repair of furnace problems.
  • Rheem’s innovative PlusOne sensor signals a clogged furnace drain, so leaks and water damage can be avoided.
  • Rheem furnaces are competitively priced when compared with similar furnaces from Trane, Carrier and Lennox.
  • Warranties on Rheem furnaces are average for the industry: 20-year and lifetime heat exchanger warranties and general parts warranties of 5-10 years depending on the series.​

Rheem Furnace Cons

  • ​While an 80% furnace can be a good choice in warm climates when ecofriendliness isn’t a top priority, installing one in a cold-climate home will lead to costly heating bills because 20% of the heat is lost in the vented combustion gases.
  • While Rheem Series gas furnaces are cheaper than Rheem’s top models, and they also lack the quality of the Prestige Series, make more noise and won’t last as long nor deliver the same high level of indoor climate control.
  • Better warranties are offered by several competing brands including Heil, Goodman, Amana, Westinghouse, Tappan and Maytag (but not by Trane or Carrier).
  • Rheem furnaces cost more than Goodman without a clear superiority in quality or performance.​

Things to Consider Before Purchasing a Rheem Gas Furnace

First, how efficient should your furnace be? In warm and moderate climates, an 80% efficient furnace is a cost-effective choice. A 90%-plus furnace would be greener, but it might take 10 years or more to recoup the extra expense of an efficient furnace through lower energy bills.

In colder climates, a high-efficiency furnace is a better choice. Paying $500-$1,500 more up front and reducing your heating costs by 15-18 percent will create a short payback period.

Secondly, is better performance worth paying for? It will be if you prefer balanced temperatures, less noise and reduced humidity in summer with staged heating and a variable-speed blower.

Rheem furnaces allow you to match the performance and efficiency levels you prefer, as these top picks in each class show:

  • 80% single stage: Rheem Classic R801P and R801S;
  • 80% two stage: Rheem Classic Plus R802P and R802V;
  • 90% and higher, single stage: 92% Rheem Classic R92P and 95% Rheem R95P;
  • 90% and higher, two stage: 96% Rheem Classic Plus R96V and R96P;
  • 90% and higher modulating: 97% Rheem Prestige R97V.

The bottom line is that Rheem is a dependable brand with good, better and best furnaces competitively priced in their classes. There are options to fit your preferences for efficiency and indoor comfort control.

If this Rheem furnace guide has been helpful to you, please share it on social media for your followers and friends who might also be considering Rheem or identical sister-brand Ruud.

Filed Under: Heating, Commercial

Rheem Heat Pump Review: Pros, Cons, Performance and Top Picks

June 15, 2019 by Sindy Aubrey

This Rheem heat pump review includes Rheem pros and cons, performance and the best Rheem heat pump in good, better and best options. Use it as a Rheem heat pump buyers guide to compare this brand’s offerings with others you are considering.

There are currently five Rheem heat pump models, as this leading manufacturer has consolidated its lineup from the nine models it sold as recently as 2013. The transition introduced two new Rheem heat pumps while eliminating redundant models. It’s now easier to choose the right heat pump for your situation, but your choice is limited.

the subject of the rheem heat pump review

Rheem Heat Pump Brand Overview

Rheem has three series from good to best. The three Rheem Classic heat pumps, 14, RP14-F and RP15, are single-stage models up to 16 SEER air conditioning efficiency and 9.0 HSPF heating efficiency. The single Rheem Classic Plus heat pump, RP17, offers up to 18.5 SEER and 10.5 HSPF. It is one of the few three-stage models on the market. The single Rheem Prestige heat pump is the RP20, featuring a variable-speed or modulating scroll compressor that delivers up to 20 SEER and 13 HSPF.

Rheem was an independent brand since its founding in 1930 by the Rheem brothers. In 1960, Rheem bought Ruud, and today the brands make an identical lineup of HVAC components. The company was recently acquired by Paloma Industries of Nagoya, Japan. Paloma decided to simplify the lineup of available models.

Rheem Heat Pump Technical Specifications

Let’s break down the specs of the three Rheem heat pump lines:

  • Rheem Classic heat pumps are single-stage models, so they run at full capacity all the time. That can lead to slight overheating in winter and overcooling in summer.
  • The Classic RP14-F is a dual fuel heat pump, which means that it can be installed in a split system with a gas furnace. The pump will provide heat until outside temperatures drop below freezing, at which time the system will automatically switch to the furnace for heat.
  • The Classic Plus RP17 heat pump offers performance by using low, medium and high compressor capacity levels to deliver the amount of heating and cooling required, an operation that also improves efficiency significantly.
  • The Rheem Prestige RP20 heat pump includes a variable-capacity Copeland Scroll compressor that speeds up and slows down in very small increments to produce the most precise and efficient heating and air conditioning.
  • All Rheem heat pump models include composite base pans that reduce noise and won’t rust.
  • The Classic Plus and Prestige models support Rheem EcoNet technology that coordinates the components to ensure optimal performance, though it requires the Rheem EcoNet thermostat that starts at about $260.
  • Many utility companies offer energy rebates for installing an energy-efficient heat pump.

Pros and Cons of Rheem Heat Pumps

Here are the top reasons to buy a Rheem heat pump:

The three series and efficiency levels give you the opportunity to select a model based on your climate or budget.

  • The RP20 with 20 SEER and 13.0 HSPF is as efficient or more efficient than current top models from Trane heat pumps (VX20i) and Carrier heat pumps (Infinity 20-25VNAO) with the same level of climate control, as well as Goodman heat pumps.
  • The RP14-F is a dual fuel model, and dual fuel heating is the most efficient split system heating in very cold climates.
  • Rheem heat pumps are rated among the top ten brands for reliability. With proper care, a Classic Plus or Prestige heat pump will last 20+ years.
  • Rheem’s louvered cabinet panels serve the dual function of allowing excellent ventilation while also protecting the fragile condensing coil fins.
  • Most Rheem heat pump models include a Copeland Scroll compressor, perhaps the most reliable compressor available.
  • Your contractor will be able to size a Rheem heat pump to your home because units are available from 1.5 ton/18,000 BTU to 5.0 ton/60,000 BTU.

There are a few potential disadvantages to consider before choosing a Rheem heat pump:

  • While 20 SEER/13 HSPF ratings of the Rheem RP20 are very good, the Lennox XP25 (23.5 SEER) is slightly more efficient and might be a better choice for extremely warm climates.
  • Reducing the lineup to just five models has eliminated a few popular performance/efficiency combinations like 2-stage/16 SEER and 2-stage/18 SEER models. Customers have more choices with Trane/American Standard (8), Carrier/Bryant (17) and Lennox.
  • Your Rheem heat pump must be installed by a qualified, experienced contractor to ensure its best performance, efficiency and durability. That is applicable to all heat pump brands.

Things to Consider After the Rheem Heat Pump Review

There are a few important issues that will help you decide which Rheem heat pump is right for you. First, do you plan to live in your current home long-term? If not, then choosing an affordable Rheem Classic model is the most affordable short-term choice.

If you plan to stay where you are, then the unit you install should be more efficient the warmer your climate is. In moderate climates, the Rheem RP14 or RP15 will serve you well. Those are also good units for part-time locations like a vacation home or workshop.

Where summers are very hot, consider the RP17 or RP20. If your winters are very cold, consider a Rheem furnace instead. See our Rheem furnace review here. Another option is the Rheem RP14-F, the dual fuel model, in addition to a gas furnace. The furnace takes the place of the air handler. If you choose dual fuel, keep in mind that more efficient dual fuel heat pumps like the Lennox XP25 and Armstrong Air 4SHP20LX are available, though at a significantly higher upfront cost. These units will cut energy use and costs over the long haul.

The conclusion is that Rheem heat pumps are dependable and reasonably priced – a good value. Have you owned a Rheem heat pump? Let us know which one and whether it was dependable and durable. Are you considering buying one? Leave your comments here to assist other readers, and if you have questions, don’t hesitate to email us. If this Rheem heat pump review has been helpful, would it benefit your Facebook friends and other social media followers? We appreciate you passing it along.

Filed Under: Heating, Commercial

Goodman Furnace Reviews: Pros, Cons, Performance and Top Picks

June 13, 2019 by Sindy Aubrey

The Goodman furnace reviews guide details the Goodman furnace options, their technical and performance specs and the pros and cons of choosing Goodman. This brand is the low-cost leader, but there are ongoing concerns about the brand’s quality.

Goodman is an American success story with a Japanese ending. Harold Goodman’s company made flexible ductwork until 1982 when he bought the HVAC brand Janitrol and started manufacturing Goodman furnaces, air conditioners and heat pumps. Goodman aggressively carved out a niche as the leading low-cost brand. After Harold Goodman’s death, the brand was sold several times. Goodman Global, with US headquarters in Houston, TX, is now part of Daikin Industries of Osaka Japan after a $3.7 billion purchase in 2012.

Goodman Furnace Brand Overview

Like all leading HVAC brands, Goodman manufactures 80% efficient furnaces and 90%-plus furnaces. The 80% AFUE furnaces are offered in two performance levels: single-stage gas valves and two-stage gas valve furnaces.

The 90%-plus furnaces range in efficiency from 92% to 98%. In addition to single-stage and two-stage models, the GMVM97 Goodman furnace has a modulating gas valve that adjusts in 1% increments.

Technical Specifications

  • Goodman 80% furnaces lose 20% of the heat they create through the exhaust, so it must be vented through the roof. Most of the 90%-plus furnaces have a secondary heat exchanger to capture additional heat from the exhaust. These furnaces can be vented through a wall.
  • Single-stage Goodman furnaces run at full capacity whenever on. They are inexpensive, a bit noisy and cause minor temperature fluctuations. The top 80% single-stage furnace is the GMS8 with multi-speed blower; the best 90%-plus single-stage furnace is the 96% efficient GMEC with multi-speed ECM blower.
  • Two-stage Goodman furnaces run at 65% capacity to keep temperatures more steady. They switch to 100% capacity when a significant boost in temperature is required. The top 80% two-stage models are the GMVC8 and GCVC8 with variable-speed blowers; the best 90%-plus two-stage Goodman furnaces are the GMVC96 (Upflow/horizontal) and GCVC96 (Downflow/horizontal)
  • The modulating Goodman furnace has a gas valve that opens from 40% to 100%, running at the lowest (and quietest, therefore) capacity necessary to maintain the temperature of the thermostat set point. The only modulating Goodman furnace available is the 98% AFUE GMVM97.
  • Two blower options are available, multi-speed (good) and variable-speed (better). The noise level of the furnace and its ability to produce balanced, comfortable temperatures improves at each performance level but so does furnace cost.
  • Upflow/horizontal and downflow/horizontal furnaces are made across the Goodman furnace range.
  • Each Goodman furnace is made in capacities from about 40,000 BTU to 140,000 BTU to fit the space to be heated.

Top Models Comparison

GMVM97

This is the brand’s most powerful unit. One of its key features is that it has an AFUE efficiency rating of 98%. The model is ENERGY-STAR certified and has a modulating operation to maximize heat production and its cost-effectiveness.

GCVM97

Another ENERGY-STAR certified model that has a self-calibrating modulating gas valve, which works in tandem with a variable-speed blower motor to provide comfort to a home. The model has an AFUE efficiency rating of 97%.

GMVC96

The model has a flexible two-stage operation and contains ComfortBridge technology that allows for precision comfort and control and provides an AFUE efficiency rating of 96%.

GCVC96

The GCVC96 has a two-stage valve to provide economical heating that is quiet to any home. The model’s ENERGY-STAR certified rating ensures the user gets an environmentally-friendly performance.

GMSS96

Although this model is a single-stage furnace, it promises comfort throughout winter. Several innovative features lack from this model, but the AFUE 96% rating proves that it will do a good job.

Exclusive Features

ComfortBridge Technology

Goodman’s ComfortBridge Technology ensures that the system operates at an energy-efficient performance by relocating the communications technology from the thermostat into the HVAC system. This technology enables the furnace to make adjustments to provide comfort and savings in the user’s home.

CoolCloud HVAC App

This mobile application enables cooling technicians to communicate via Bluetooth with the control board in the Goodman furnace. This feature enables contractors to streamline the service, thereby saving the consumer time and money by reducing the manual labor expense.

Pros and Cons of Goodman Furnaces

Here are the reasons Goodman is the leading low-cost brand and a few cautions to consider before buying one. For comparison, see our guide to Trane furnaces, a leader among premium furnace brands, and guide to Rheem furnaces, a moderately-priced brand.

Pros

  • Goodman’s selling point is that it offers decent quality at a low price, so its furnaces are among the best values on the market;
  • Warranties for Goodman furnaces are among the very best in the industry, better than Trane, Carrier, Bryant, American Standard, Lennox, Rheem, Ruud and most others;
  • With 80% to 98% efficient furnaces at several performance levels, you’ve got excellent options to suit your budget, heating needs and climate control preferences;
  • The aluminized steel heat primary and stainless steel secondary heat exchangers are durable;
  • Goodman is a nationwide brand, so finding an installer will be easy. The brand can be maintained and repaired by any certified HVAC technician;
  • The most efficient models can be direct-vented out of a wall rather than the roof, so this reduces installation costs;
  • Many of the Energy Star furnaces from Goodman qualify for rebates from energy companies around the United States;
  • Goodman makes air conditioners, thermostats/controls and indoor air quality units to complement its furnaces in a complete HVAC system;
  • Goodman furnace thermostats include value-priced models, mid-priced controls and high-end touchscreen thermostats with Wi-Fi connectedness that allows you to control your HVAC system by using a smartphone and free app.

Cons

  • Goodman’s advantage – decent equipment at an affordable price – is also its major flaw; Goodman furnaces currently don’t demonstrate the quality of the ones from brands like Trane, Lennox, Carrier or Heil, though this might change under Daikin control of the brand;
  • With quality concerns, a Goodman furnace is a cheap, short-term (up to 12 years) option, but for long-term durability, it makes sense to consider one of the premium brands;
  • Similarly, savvy homebuyers who see a Goodman furnace might have concerns that affect their buying decision;
  • While warranty coverage is excellent, the limited lifetime warranty won’t transfer to a new owner if you sell your home.

Things to Consider Before Purchasing a Goodman Furnace

In terms of the brand, you’ve got to decide if you want a cheaper, less expensive Goodman furnace that might need to be replaced in 10-15 years or a furnace from a brand known for durability. While Goodman’s warranties on the equipment are excellent, most don’t cover labor costs beyond one year (the industry standard). This means that you still might get stuck with a sizable bill if the furnace fails.

Keep your climate in mind. An 80% furnace is cheap but will produce high heating costs in cold climates. On the other hand, in warm climates, the extra cost of a 90%-plus furnace might not be made back through lower energy costs for 10-20 years.

Make sure your contractor does a load test before choosing your furnace. This will ensure that the right size unit is installed. A furnace that is too large will create overheating issues in your home; one that is too small will struggle to keep up in the coldest weather and will likely have early mechanical issues.

Goodman Furnace Reviews – Final Thoughts

Has the Goodman furnace guideline demonstrated this brand’s low-cost/fair-quality reputation with its risks and rewards? Would your friends find our Goodman Furnace reviews interesting or useful as they consider buying a furnace for their home? Pass it along on social media to assist others in making an informed decision about their furnace purchase!

Filed Under: Heating, Commercial

Goodman Heat Pump Reviews: Pros, Cons, Performance and Top Picks

June 12, 2019 by Sindy Aubrey

The Goodman heat pump reviews provide information you can use to decide if a Goodman product is right for your home or business. You’ll find performance and technical specifications for the four Goodman heat pump units, top models and the pros and cons of choosing the brand.

Since Harold Goodman began manufacturing HVAC components in 1982, Goodman has captured a huge market share by being the low-cost heating and cooling brand. Its quality has been suspect, though. Global HVAC giant Daikin has owned Goodman since 2012 and appears committed to keeping the brand in its traditional price-conscious niche.

the subject of the goodman heat pumps reviews

Goodman Heat Pump Brand Overview

Daikin has reduced the Goodman heat pump lineup to just four models. This provides consumers with a limited number of options for efficiency and performance. Compare that to the eight Trane models reviewed on our site or the 17 Carrier heat pumps. The GSZ14 (15 SEER/9.0 HSPF) and GSZ16 (16 SEER/9.0 HSPF) models are Goodman single-stage heat pumps.

The DSZC16 (16 SEER/9.5 HSPF) and DSZC18 (18 SEER/9.5 HSPF) heat pumps are two-stage Goodman heat pumps.

Note: The higher the cooling SEER (seasonal energy efficiency ratio) and heating HSPF (heat seasonal performance factor), the more efficiently the Goodman heat pump transfers heat out of or into your home.

GSZ14 Features:

  • High-efficiency scroll compressor.
  • SmartShift defrost technology.
  • Bi-flow liquid-line filter dryer.
  • Copper tube with aluminum fin coil.
  • Factory installed suction line, high-capacity muffler and compressor crankcase heater.
  • Ground lug connection.
  • AHRI certified.

DSZC16 Features: 

  • High-density foam compressor heat blanket
  • Comfort alert diagnostics built in.
  • Smartshift defrost technology.
  • Diagnostic indicator lights.
  • Coastal anti-corrosive coating.
  • Factory installed suction line, high-capacity muffler and compressor crankcase heater.
  • Bi-flow liquid-line filter dryer.
  • Ground lug connection.
  • AHRI certified.

Overall Goodman Heat Pump Technical Specifications

  • Goodman single-stage heat pumps are the most affordable and least efficient. They run at 100% capacity when on, so they’re noisy and may heat and cool past the thermostat set point.
  • The top single-stage Goodman heat pump is the Goodman SZ16 with built-in defrost function and high/low-pressure switches.
  • Goodman two-stage heat pumps cost more but deliver quieter, more comfortable climate control by running at 65% capacity. The only time that doesn’t happen is when you change the setpoint or the outdoor temperatures rise/fall quickly, and the heat pump must catch up.
  • The overall best Goodman heat pump is the two-stage DSZC18 with defrost, pressure switches and compatibility with Goodman’s ComfortNet Communication technology. That optimizes climate control and efficiency.
  • While the single-stage Goodman heat pump models are built with a compressor of standard quality, the two-stage models feature the well-regarded Copeland Ultratech scroll compressor made by parts giant Emerson.
  • Goodman has a short-cycle prevention technology called SmartShift that protects the compressor and improves longevity.
  • Factory-installed filter driers remove moisture from the refrigerant before it can reduce the effectiveness.

Pros and Cons of Goodman Heat Pumps

Here are the main reasons consumers choose a Goodman heat pump or stay away from the brand.

Goodman Heat Pump Pros

  • Goodman combines good (though not outstanding) quality with some of the lowest prices in the industry to create an excellent value.
  • The warranties on Goodman heat pumps are among the industry’s best, including a complete unit replacement for a failed compressor.
  • All Goodman heat pump models are Energy Star rated, and the most efficient may qualify for significant rebates from your energy company
  • Since Goodman is a nationwide brand, installers and repair parts are readily available.
  • Goodman heat pumps use R-410A, shown to be less impactful on the environment than older residential HVAC refrigerants.

Goodman Heat Pump Cons

  • The primary concern about Goodman is the shaky dependability record beyond 10 years.
  • The reduction of the lineup to just four models gives consumers fewer options than available with most other brands;
  • The most efficient Goodman heat pump, the DSZC18 (18 SEER/9.5 HSPF), has lower efficiency ratings than competitors such as the Lennox XP25(23.5 SEER / 10.2 HSPF), and the Carrier Infinity 20 / Bryant Evolution 280A (20.5 SEER/13 HSPF).
  • While the Goodman heat pump parts warranties are outstanding, most don’t cover labor on repairs past the industry-standard 12 months. That means you might have high repair bills if your Goodman unit fails prematurely.
  • Most other top brands have introduced a modulating/variable-capacity heat pump that delivers 20+ efficiency and tremendous climate control. Goodman is a step behind.
  • Goodman heat pumps are sold to any HVAC company, not just those certified by Goodman. Make sure your installer has Goodman training and certification.

Things to Consider After Reading the Goodman Heat Pump Reviews

When considering saving money on an affordable heat pump, you must consider the mediocre service record of Goodman. The trade-off is a lower price for a unit that should last 12-15 years but might have a few mechanical issues versus the higher cost of a premium heat pump that will last 20+ years.

Take your climate into consideration, too. The more extreme your weather, the more efficient the unit should be. In very hot climates, only consider heat pumps with 20 SEER or higher. That’s something Goodman doesn’t offer, though parent-company Daikin does in the Daikin D21 SEER/10 HSPF DZ20VC.

The more important precise indoor comfort is, including dehumidifying your home in hot summer weather, the more efficient the unit should be. Single-stage models do a poor job with climate control. The two-stage models are better. Modulating/variable-capacity heat pumps such as the Lennox XP25, Maytag iQ Drive PSH4BI and Carrier Infinity 20 are the best, but Goodman doesn’t make one.

Final Thoughts

We trust that the Goodman heat pump reviews have helped you decide whether to consider Goodman heat pumps or to rule them out. If this information interests you or helps your friends and followers on social media, why not pass it along? Perhaps, it will help them select a heat pump that saves them money and does a superior job by making their home comfortable. Dont’s hesitate to e-mail us any questions or comments.

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Filed Under: Heating, Commercial

Trane Heat Pump Review: Pros, Cons, Performance, Top Picks

February 1, 2017 by Sindy Aubrey

This Trane heat pump guide is designed to assist you in researching this brand and comparing it to others you’re considering. Performance and technical specifications are detailed below for good, better and best models along with Trane heat pump pros and cons.

Trane is a leading heat pump brand for new and replacement HVAC systems. Like most top competitors, Trane’s lineup includes single-stage, two-stage and modulating heat pumps that get progressively more efficient and more expensive. Trane makes eight heat pump models.

trane logo wide

Trane Brand Overview

Trane has grown to be a global leader in residential and commercial HVAC systems, a steady climb from its launch by James Trane in Lacrosse, WI in 1885. Today, the Ingersoll-Rand Corporation owns Trane and nearly identical brand American Standard. The best Trane heat pumps are in the top ten in both customer satisfaction and cost. If you’re looking for a budget heat pump, see our Goodman Heat Pump Review for comparison.

Trane Heat Pump Technical Specifications

You’ve got options to fit your climate, budget and how you’ll use the heat pump. The term SEER (Seasonal Energy Efficiency Rating) refers to cooling while HSPF (Heating Seasonal Performance Factor) refers to heating. The higher the numbers, the more efficiently the unit uses electricity to heat and cool.

  • Single-stage heat pumps are the most basic and affordable, and they run at 100% capacity (and noise level) resulting in slight overheating and cooling that produces temperature fluctuations;
  • The most efficient single-stage Trane heat pump is the Trane XR16 with 17 SEER/9.6 HSPF ratings;
  • Two-stage models run at about 65% capacity (and noise) most of the time to produce quieter, more balanced temperatures, and they run at 100% capacity when you call for more heat/cooling at the thermostat or outside temperatures change quickly;
  • The best two-stage Trane heat pump is the Trane XL18i with 18 SEER/9.5 HSPF efficiency;
  • The two Trane heat pumps with variable-speed technology, called modulating and variable-capacity by other brands, adjust from about 40% to 100% capacity (and noise) and run at the lowest capacity required to optimize temperature balance and indoor comfort;
  • Trane’s most efficient heat pump is the variable-speed XV20i with 20 SEER/10 HSPF efficiency.

Pros and Cons of Trane Heat Pumps

Trane heat pumps offer the advantages and disadvantages listed here.

Trane Heat Pump Pros

  • Trane heat pumps are durable, and most will last 15-20+ years when properly maintained, and the Climatuff ® compressor used on all models is one of the most reliable in the industry;
  • Eight Trane models are offered at various price/efficiency levels to give you options to suit your heating, cooling and performance requirements;
  • Trane makes most heat pumps in capacities from 1.5 tons / 18,000 BTU to 5 ton tons / 60,000 BTU to provide a model properly sized to your home;
  • Trane Earthwise hybrid heat systems use both a heat pump and a gas furnace, an ideal combination for homes in very cold climates;
  • Trane Comfort-R technology does a superior job dehumidifying a home during air conditioner cycles;
  • Complete split systems and package units are made by Trane for coordinated heating and cooling, air quality control and HRV/ERV home ventilation;
  • Trane has a nationwide network of certified technicians for installation, maintenance and repair, and parts are readily available – however, you should ask for Trane OEM parts to avoid universal parts being installed;
  • All Trane heat pump models are Energy Star rated, and rebates are offered by many energy companies across the US when you install one of Trane’s more efficient models;
  • Both standard and Wi-Fi connected thermostats are available from Trane to coordinate system performance, and the Wi-Fi models can be controlled from a smartphone using the Trane app;
  • Financing from Trane is available to qualified customers.

Trane Heat Pump Cons

  • Trane’s most efficient heat pump, the XV20i with 20 SEER /10 HSPF efficiency is not as efficient as top competitors like the Carrier Infinity 20 and Bryant Evolution 280A (20.5 SEER/13 HSPF) and the Lennox XP25 (23.5 SEER / 10.2 HSPF).
  • Trane heat pumps cost more than brands including Goodman, Amana, Aire-Flo and Payne, and part of the higher cost is better quality, though part of it is Trane’s large advertising budget
  • While Trane warranties on the best models are average for the industry and comparable to those from Lennox and Carrier, Goodman, Amana, Heil, Maytag, Tappan and Tempstar are among brands that have longer warranties and those that include entire product replacement
  • Trane heat pumps cost more than Trane furnaces, though the extra cost will be recouped over time through lower energy bills

Things to Consider Before Purchasing a Trane Heat Pump

Your climate matters. In hot climates, it makes sense to pay more upfront for a model with a high SEER rating for efficient, environmentally friendly cooling. Your energy costs in the long-term will be much lower, for example, with the 20-SEER XV20i than with the 16 SEER XR15. The longer you intend to live in your current home, the better your savings will be. If you plan to move, having a high-efficiency system in place will be a strong selling point.

If your winters are very cold, installing a gas furnace instead of a heat pump or choosing a hybrid heat system with heat pump and furnace are better choices than a heat pump alone. The reason is that heat pumps lose effectiveness in freezing weather, and you must rely on the unit’s electrical heating – like space heating—which produces high energy costs. The cheapest way to heat your home in cold climates is a hybrid system, though the cost for the system is higher, and the payback time is 8-12 years.

Summing Up

Once you’ve selected the Trane heat pump right for your climate, make sure it is sized properly. Installing a unit with too much or too little capacity creates a range of problems from insufficient heating and cooling to temperature fluctuations to premature mechanical failure. Ask your contractor to do a load test to see what size heat pump you need.

Has this Trane heat pump guide helped you understand your options and decide? If so, your friends might find it useful too. We encourage you to pass it along to be of help to others weighing their heating and cooling options.

Filed Under: Heating, Commercial

Rheem Water Heaters: Pros, Cons, Performance, Top Picks

January 25, 2017 by Sindy Aubrey

Rheem makes more water heaters than any brand in North America. This Rheem water heater review provides information you can use to consider this brand and compare it with others you’re considering. Pros and cons are found below along with the best Rheem water heaters in each category.

rheem water heaters

Rheem Brand Overview

The brand dates to 1930 when Richard and Donald Rheem launched the Rheem Manufacturing Company using financing from their brother William. Rheem has been an innovator in water heating, air conditioning and heat pump technology. Today, Rheem is part of Paloma Industries of Nagoya, Japan along with a dozen other brands including Ruud. The lineup of Rheem water heaters ranges from affordable but inefficient electric units to expensive but very efficient hybrid models with heat pump technology.

Rheem Water Heaters Technical Specifications

Let’s look more closely at the five types of Rheem water heaters and what they offer. Both residential and commercial models are available in all classes but solar.

  • Rheem tank-style gas water heaters are considered an excellent value because they offer efficiency up to 84% while remaining affordable. They also have a quick recovery time, so running out of hot water is rare. More than 20 models are produced in good/better/best series in sizes from 29 gallons to 98 gallons. The Professional Classic Plus Series heavy duty power direct-vent model is the top-rated Rheem gas water heater.
  • Rheem tank-style electric water heaters use one to three 1500-watt coils depending on capacity, and while the least costly models, they are the least efficient and produce the highest operating costs. Recovery time is slow. Sizes range from single-location 19-gallon models to whole-house 55-gallon Rheem water heaters. The Rheem Classic Series standard electric water heater is the top pick in this group.
  • Rheem hybrid heat pump water heaters employ a condensing unit with a compressor, coil and refrigerant to gather heat from the air around the unit and using it to assist the electric coils to heat water very efficiently. They recover very quickly and can provide near-continual hot water. The Professional Prestige Series Hybrid Electric water heater is the best in this class and is available in capacities of 50, 65 and 80 gallons. Concerns about the performance of these units are discussed below.
  • Rheem tankless water heaters are available in electric and gas models. Smaller units serve one location while large gas tankless Rheem water heaters serve an entire home. They provide continual and instant hot water. Electric tankless models deliver instant, continuous hot water but with a lower gallons-per-minute rate. The Energy Star-rated Pro Prestige Series 95 direct-vent indoor model with 94% efficiency is the top model in this group. It is low-flow compatible and delivers up to 9.5 gallons per minute.
  • Rheem solar water heaters include a tank or heating element to fit an existing tank, collection panel, electric or gas backup depending on the model and capacities from 75 to 120 gallons. The Rheem Solaraide HE is offered with a complete tank models or just an element that can be used with an existing tank. It is the best of the solar Rheem water heaters.

Pros and Cons of Rheem Water Heaters

There are many reasons to consider a Rheem water heater along with a few cautions to think about when making your choice.

Rheem Water Heaters Pros

  • Rheem has the largest selection in the industry to choose from with models to fit your budget, preferred energy source and installation requirements.
  • Because Rheem is the largest brand in North America, finding a service technician is easy and parts are readily available.
  • Most Rheem water heaters are produced in several sizes to meet your capacity needs.
  • All tankless water heaters are very compact for installation under a countertop.
  • Efficient gas and hybrid Rheem models offer direct-vent exhaust through the wall, so no venting through the roof is needed, and that reduces installation costs.
  • Rheem gas water heaters are outfitted for natural gas but can be easily converted for use with propane gas.
  • Point of use water heaters feature a small tank for compact spaces, though they only have capacity to about 20 gallons.
  • Rheem has an adequate selection of water heaters for the mobile home market.

Rheem Water Heater Cons

  • Tank-type Rheem water heaters are prone to standby heat loss – the water is heated and might have to be reheated if it is not used – so these models are less efficient than tankless water heaters
  • While electric water heaters are inexpensive, they use 3-5 times as much power to run as gas, hybrid and tankless, so electric costs are high
  • Hybrid and solar Rheem water heaters are efficient, but they are also very expensive and repair costs are potentially quite high, so might not be as good a long-term value as a gas water heater
  • Hybrid models get mediocre ratings, mainly for poor mechanical performance

Things to Consider Before Purchasing a Rheem Water Heater

When deciding on the right Rheem water heater for your home, consider these issues.

Gas water heaters are much more efficient and recover more quickly than electric coil heaters, and they cost just 10-15 percent more. If you must run a gas line to the installation location, the cost of the line will be recouped in 3-7 years of lower energy costs depending on how much hot water you use.

Hybrid water heaters are pricey, and frankly, it seems that Rheem needs to improve hybrid technology and mechanical performance before these units are worth considering. Solar units are a good choice if environmental concerns are your top priority. The time it will take to recoup the extra cost will be 10-20 years depending on how sunny your climate is.

If you want a tankless water heater, then gas is better for an entire home while electric can be a cost-effective choice for single locations where there is no gas line.

A gas water heater will deliver much more hot water than an electric water heater of the same size because gas heats much faster. Gauge the size of the water heater you choose on the size of your household and which energy source you prefer.

Rheem water heaters are made in Classic (good), Classic Plus (better) and Prestige (best) series. The better the quality of the unit, the better the warranty will be, but the higher the cost will be too. The longer you plan to be in your current home, the more it makes sense to choose from Classic Plus or Prestige Series Rheem water heaters.

Filed Under: Heating, Commercial

Trane Furnace Review: Pros, Cons, Performance, Top Picks

December 13, 2016 by Sindy Aubrey

In this Trane furnace guide, you’ll find an overview of the brand’s furnaces and their features. Pros and cons are included to assist you in comparing within the Trane brand and with other leading brands you’re considering.

Trane furnaces have a reputation for quality, and they are among the best-selling furnaces made today. Furnaces from Trane are available in a range from affordable 80% AFUE (annualized fuel usage efficiency) models to high-performance gas furnaces with efficiencies of more than 97% AFUE.

trane furnace logo

Trane Air Filters

Preview Product
Trane TRANE-FLR06069 American Standard Perfect Fit Air Filter... Trane TRANE-FLR06069 American Standard Perfect Fit Air Filter... Check Price
Trane TRANE-FLR06070 American Standard Perfect Fit Filter (BAYFTFR21M) Trane TRANE-FLR06070 American Standard Perfect Fit Filter (BAYFTFR21M) Check Price

Trane Brand Overview

Trane is owned by Ingersoll Rand, one of the world’s largest manufacturers of residential and commercial HVAC equipment along with stationary and transport refrigeration systems, tools, compressors and more. Sister-brand American Standard shares a furnace lineup with Trane that is virtually identical.

As you browse the Trane furnace collection, you’ll find three levels of heating performance. They are single-stage furnaces, two-stage furnaces and variable-capacity furnaces that deliver good, better and best heating efficiency and indoor comfort control.

Trane Furnace Technical Specifications

Trane furnaces are produced in a range of performance options, so you have choices to match your HVAC needs:

  • Single-stage heating runs at 100% capacity all the time, so heating is louder, and you might notice temperature swings;
  • Two-stage heating runs at 65% capacity most of the time, which is quieter and offers better temperature balance, and at 100% capacity when a boost in heat is required;
  • Variable-speed heating, also called variable-capacity and modulating heating, provides heat in precise increments between 40% and 100% capacity to deliver the quietest heating with the smallest temperature fluctuations of any type;
  • Single-stage furnaces have single-speed and multi-speed blowers that contribute to noise and temperature fluctuations;
  • Better two-stage Trane furnace models have variable-speed blowers that run more quietly and help reduce temperature swings in your home;
  • Trane furnaces with a variable-capacity gas valve have variable-speed blowers, a combination that provides the quietest heating and best climate control in all seasons;
  • Trane Comfort-R technology on better and best furnaces provides constant fan-on operation that improves humidity reduction when the system is in air conditioning mode;
  • Most models are equipped with silicon nitride hot surface igniters (HSI) that deliver reliable ignition.

Trane TRANE-FLR06069 American Standard Perfect Fit Air Filter...
Trane TRANE-FLR06069 American Standard Perfect Fit Air Filter...
  • perfect fit air filter (BAYFTFR17M)
  • Captures particles as small as 0.3 microns.
  • Higher efficiency and lower pressure drop than oem filter.
Check Price

Pros and Cons of Trane Furnaces

Let’s look at the reasons to purchase a Trane gas furnace and a few cautions to consider before you do.

Trane Furnace Pros

  • Trane furnaces have a reputation for quality and durability to last 20 years or more.
  • Trane makes gas furnaces for all climates – standard 80% Trane furnaces ideal for warmer climates and a range furnaces with 90% and higher efficiency for colder regions and homeowners that want environmentally friendly heating regardless of climate.
  • Furnaces are available from Trane with heating capacity from about 45,000 BTUs to more than 100,000 BTU to fit small, mid-size and large homes.
  • Trane makes furnaces in price ranges starting with affordable units to fit your budget and progressing to more expensive furnaces with premium performance features.
  • Energy Star-rated furnaces from Trane qualify for energy rebates from many energy companies around the United States.
  • Trane’s product lineup includes furnaces, air conditioners, heat pumps, air handlers, home ventilation systems and other components designed to work together for better efficiency and climate control.
  • Oil furnaces are manufactured by Trane for regions where home heating oil is a cost-effective option.
  • Trane has a broad network of service technicians, so if your furnace needs maintenance or repair, you’ll find help nearby.
  • Warranties on Trane’s best furnaces include lifetime coverage on the heat exchanger and 10-year coverage on functional parts.

Trane Furnace Cons

  • Trane furnaces are higher priced, on average, than many brands, and some of the increased cost is due to more money spent on marketing and not on quality or performance differences.
  • While an 80% AFUE Trane furnace costs less than a 90% or more efficient model, it will lead to very high heating bills in cold regions of the country.
  • On the other hand, while Trane furnace models like the Trane S9V2 with 96% efficiency reduce energy use and heating cost significantly, the 10-25 years it takes to recoup the higher equipment cost in warm and moderate regions means they might not be cost-effective there.
  • While Trane gas furnaces are backed by warranties average for the industry, brands like Goodman, Amana, Maytag, Westinghouse, Tappan and Heil offer better warranties including furnace replacement coverage on the heat exchanger and longer functional parts warranties.
  • When Trane furnaces require repair, the replacement parts used in them are often universal parts that might be used in any brand rather than OEM Trane parts.
  • Most Trane furnaces are available only through the Trane network of dealers, so the only way to get accurate pricing is to request a written estimate from a Trane dealer.

Trane TRANE-FLR06070 American Standard Perfect Fit Filter (BAYFTFR21M)
Trane TRANE-FLR06070 American Standard Perfect Fit Filter (BAYFTFR21M)
  • Higher efficiency and lower pressure drop than OEM filter.
  • Captures particles as small as 0.3 microns.
  • Pleated filter for greater media capacity.
Check Price

Things to Consider Before Purchasing a Trane Gas Furnace

Your first decision is about efficiency. If your winters are extreme, then a 90% AFUE or higher furnace will keep energy costs lower. You’ll be paid back for the higher cost of the furnace in less than 10 years. If your top priority is green heating, then the most efficient furnace you can afford is a good choice.

Next, are you willing to pay for enhanced indoor comfort? In 80% furnaces, a unit like the Trane XR80 offers basic single-stage heating and a lower cost while the XV80 includes two-stage heating and a variable-speed blower for better climate control. In more efficient gas furnaces, the XT95 (single-stage), XL95 (two-stage) and XC95m (modulating) provide a range of climate control performance at increasingly expensive prices.

Trane furnaces are top sellers because of their quality and the selection you have for matching a furnace to your budget, climate and indoor comfort preferences.

Has this Trane furnaces guide provided information new to you, or did you find it insightful? If so, perhaps your friends and followers will benefit from it as well. Pass it along to assist them in choosing a Trane gas furnace that makes their home and their energy bills as comfortable as possible.

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Filed Under: Heating, Commercial

A/C Technicians

August 10, 2014 by HVAC Expert

What Does an HVAC Tech Do?
By Betty Stephens

tech

HVAC Professionals
HVAC technicians are professionals in the field of heating, ventilation, air conditioning service and support. They can be an independent contractor or employed by a company that specializes in climate control solutions.

They work in residential homes, schools, hospitals, office buildings, or factories. Their worksites may be very hot or cold because the heating and cooling system they must repair is broken. They are mostly full time workers. Technicians generally work indoors, but may have to work on outdoor heat pumps, in bad weather. They often work in awkward or cramped spaces, and some work in buildings that are uncomfortable because the air conditioning or heating system is broken.
The HVAC technician may install new systems and therefore must be proficient in reading blueprints connected to the installation, and participates in preparing the space for the installation of new equipment including the ductwork construction and installation as well as the main components for the system. The HVAV technician is responsible for making sure the installation is conducted in compliance with local regulations, so that the unit provides efficient heating and air conditioning.
Maintenance of Existing Systems
The HVAC technicians may also maintain existing systems, inspecting each component in the system. This includes making sure that each portion of the overall system is functioning at an acceptable level of efficiency. If a part is wearing out or in danger of breaking down, the technician repairs the unit. An HVAC technician checks for ventilation efficiency of a system and makes adjustments.

HVAC Tech Tools
HVAC technicians must use several types of tools on their job. They often use screwdrivers, wrenches, pipe cutters and other basic hand tools when installing systems. To test or install complex system components, technicians may use more sophisticated tools, such as carbon monoxide testers, voltmeters, combustion analyzers, and acetylene torches. When working on air conditioning and refrigeration systems, technicians must follow government regulations regarding the conservation, recovery, and recycling of refrigerants. This often entails proper handling and disposal of fluids.

Selling Services
HVAC technicians may also sell service contracts to their clients, providing regular maintenance of heating and cooling systems. HVAC techs often used other craft workers at times to help install or repair cooling and heating systems. On a large air conditioning installation job, other contractors may work on the project, such as a ductwork; a sheet metal workers, installers, or electricians.

Filed Under: Commercial, Commercial, Cooling, Heating, Residential, Residential, Tools of the Trade Explained Tagged With: A/C service technician, Heating service, hvac, HVAC inspection, HVAC service tech, service tech, technician

Heating & Cooling A Submarine

July 29, 2014 by HVAC Expert

Heating, Cooling Submarines
By Betty Stephens

Cooling a Submarine

Heating Submarines
A submarine is mostly all metal, and metal is an excellent conductor of heat. The surface area of a submarine is large. The ocean is filled with convection currents, caused by the sub’s motion. This makes the heat transfer between submarine and ocean an active process. The temperature’s difference between the sub and the ocean is small, the total heat transfer is considerable because of the large contact area.
There is continuous production of heat, given off to the submarine air by hot engines, storage batteries, galley stove, electric lights, electric heaters, other devices, and human passengers. There is continuous production of moisture, given off to the air by evaporation from these same four main sources. The moisture production averages about 1000 pounds of water per day.
If the submarine is running on the surface, it is an easy matter to discharge this excess heat and moisture outboard. When the submarine is submerged, heat cannot be discharged outboard, and must be eliminated during recirculation of the air.
If the submarine is warmer than the ocean water, the interior heat of the vessel gradually passes through the shell into the water. The temperature of the air inside drops and, when it reaches the dew point, the water vapor in the air begins to condense on every available surface. So, the interior surfaces of a submarine are coated, with cork paint, to prevent or reduce this condensation to a minimum. The beginning of the condensation, however, depends upon the dew point, and this can be controlled by air-conditioning. Therefore, air-conditioning is just as essential for this purpose as for the comfort of the crew. It is always advisable to lower the dew point before a dive.
But, if the ocean is warmer than the submarine, there is a passage of heat from the water into the ship. However small this may be, it adds to the interior heat. The same result occurs if the loss of heat from this vessel to the ocean is less than the interior heat production. In hot summer weather, especially in tropical and subtropical regions, the air temperature in a submarine may rise to fairly high levels.
Air Conditioning the Submarine
In a submarine, there is only a few cubic feet of space available for air-conditioning equipment, and the cooling capacity is limited. The purpose of the air-conditioning system is not to cool the whole submarine. Let’s assume the air contains enough oxygen for the needs of all the occupants within the given space. A supply of oxygen compressed in cylinders is carried on board submarines to be released into the air as needed.

The submarine has room enough for air-conditioning machinery to control the dew point. Control of the dew point means control of the relative humidity, and the relative humidity is the factor of major importance.
Lowering the Dew Point.
The dew point of the air is the temperature at which that air is saturated with moisture. If the temperature of the air is then further lowered, some of the moisture must condense out.
The air in the submarine room is drawn by fans into and through the ducts to the air-conditioning evaporator. In passing over the cooling coils, its temperature drops below its dew point and part of its water vapor condenses out, inside the evaporation cabinet. The condensed water is not permitted to get back into the air, but is drained off into a tank. The air, now lower in moisture content and slightly lower in temperature also, continues its flow through the ducts and is finally blown out into the room again. This conditioned air mixes with the moisture and warmer air still in the room, resulting in an over-all condition that is drier than the original unconditioned air.
Air-conditioning in the tropics.
In hot climates, the air-conditioning system must be operated at maximum capacity. The procedure is to operate the compressors at full speed and the blowers at a speed that the temperature of the air from the discharge side of the evaporators is below the dew point. The conditions of high air temperature in the tropics are naturally adverse to effective air-conditioning, especially when the large area of open water surfaces in the bilges is considered. The plant must be run to obtain maximum comfort and protection of equipment against moisture, both of which are obtained by removing the large quantity of water vapor from the air. This condensing process is accomplished by always maintaining the temperature of the discharge air from the evaporators below the dew point.
Nuclear Submarines
The nuclear submarine, USS Sea Wolf was the only U.S. submarine to have a sodium-cooled nuclear power plant. It was commissioned in 1957, but it had leaks in its super heaters, which were bypassed. In order to standardize the reactors in the fleet, the submarine’s sodium-cooled reactor was removed starting in 1958 and replaced with a pressurized water reactor.

A liquid metal cooled nuclear reactor, liquid metal fast reactor or LMFR is an advanced type of nuclear reactor where the primary coolant is a liquid metal. Liquid metal cooled reactors were first adapted for nuclear submarine use but have also been extensively studied for power generation applications. They have safety advantages because the reactor doesn’t need to be kept under pressure, and they allow a much higher power density than traditional coolants.

Filed Under: Commercial, Commercial, Cooling, Heating Tagged With: advanced heating and cooling, Air conditioning, heating & cooling, heating & cooling a submarine, submarines

Thomas Midgley Jr. – Inventor of Refrigerant

July 23, 2014 by HVAC Expert

Thomas Midgley, Jr
By Betty Stephens

Midgley

Inventor of Freon and Leaded Gas
Thomas Midgley, Jr. (May 18, 1889 to November 2, 1944) was an American mechanical engineer and chemist. He was a key figure in a team of chemists, led by Charles F. Kettering, that developed the tetraethyl lead (TEL) additive to gasoline as well as some of the first chlorofluorocarbons (CFCs). He was granted over a hundred patents. He was honored for his scientific contributions during his lifetime but, the negative environmental impact of some of his innovations has tarnished his legacy.
Midgley was born in Beaver Falls, Pennsylvania. His father was also an inventor. He grew up in Columbus, Ohio, and graduated from Cornell University in 1911 with a degree in mechanical engineering.
He started work at General Motors in 1916. In December 1921, while working under the direction of Kettering at Dayton Research Laboratories, a subsidiary of General Motors, He discovered that the addition of TEL to gasoline prevented “knocking” in internal combustion engines. The company named the substance “Ethyl”, avoiding all mention of lead in reports and advertising.

Oil companies and automobile manufacturers, especially General Motors which owned the patent jointly filed by Kettering and Midgley, promoted the TEL additive as a superior alternative to ethanol or ethanol-blended fuels. December 1922, the American Chemical Society awarded Midgley the 1923 Nichols Medal for the “Use of Anti-Knock Compounds in Motor Fuels”.

Lead Poison
In 1923, Midgley took a time off to cure himself of lead poisoning. “After about a year’s work in organic lead,” he wrote in January 1923, “I find that my lungs have been affected and that it is necessary to drop all work and get a large supply of fresh air.” He went to Miami, Florida for vacation.

Freon
In the 1920s, air conditioning and refrigeration systems employed compounds such as ammonia (NH3), chloromethane (CH3Cl), propane, and sulfur dioxide (SO2) as refrigerants. These were toxic, flammable or explosive and, in the event of leakage, could result in serious illness, injury or even death. The Frigidaire division of General Motors, at that time a leading manufacturer of such systems, sought a non-toxic, non-flammable alternative to these refrigerants Kettering, the vice president of General Motors Research Corporation at that time, assembled a team that included Midgley and Albert L. Henne to develop such a compound.

The team soon narrowed their focus to alkyl halides (the combination of carbon chains and halogens), which were known to be highly volatile and also chemically inert. They eventually settled on the concept of incorporating fluorine into a hydrocarbon. They rejected the assumption that such compounds would be toxic, believing that the stability of the carbon fluorine bond would be sufficient to prevent the release of hydrogen fluoride or other potential breakdown products. The team eventually synthesized dichlorodifluoromethane, the first chlorofluorocarbon (CFC), which they named “Freon”. This compound is more commonly referred to today as “Freon 12”, or “R 12”.

Freon and other CFCs soon replaced the various toxic or explosive substances previously used as refrigerants, and were later used in other applications, such as propellants in aerosol spray cans and asthma inhalers. The Society of Chemical Industry awarded Midgley the Perkin Medal in 1937 for this work.

His Legacy
In 1940, at the age of 51, Midgley contracted polio, leaving him disabled. This led him to devise an elaborate system of strings and pulleys to help lift him out of bed. This system was the cause of his death when he was entangled in the ropes of this device and died of strangulation at the age of 55.

Midgley died three decades before the ozone-depleting effects of CFCs in the atmosphere became widely known. Another adverse effect of Midgley’s work was the release of large quantities of lead into the atmosphere as a result of the large-scale combustion of leaded gasoline all over the world.

Thomas Midgley, Jr

Midgley

Filed Under: Commercial, Commercial, Cooling, Heating, Product Reviews, Residential, Residential, Tools of the Trade Explained Tagged With: A/C, Air conditioning, CFC's, chemists, freon, inventor, inventor of freon, leaded gas, Midgley, patents, R22, Thomas Midgley Jr.

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