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We are husband and wife HVAC contractors who started in 1988. We formed this web site so consumers could have an educational place to go for good, solid information. We are not trying to sell you anything. We just want pass on years of research, trial and error, and our street knowledge. Hopefully you will find it useful, helpful and enjoyable. Maybe we can even make you smile.
March 4, 2024
A/C Technicians

What Does an HVAC Tech Do? By Betty Stephens 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 […]

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March 3, 2024
Heating & Cooling A Submarine

Heating, Cooling Submarines By Betty Stephens 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 […]

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March 2, 2024
Thomas Midgley Jr. - Inventor of Refrigerant

Thomas Midgley, Jr By Betty Stephens 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 […]

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March 1, 2024
HVACR Contracting Business Magazine

HVACR Contracting Business.com Magazine’s 70th Anniversary By Betty Stephens In June Contracting Business.com trade magazine celebrated its 70th birthday. It was 70 years ago that Cleveland-area publisher Irving B. Hexter created this publication to serve the refrigeration industry. He called it, "The Refrigeration Industry," In 1949, The Refrigeration Industry’s name was changed for the first […]

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March 1, 2024
R134A Quest - Auto Re-Charge Kit

Auto Freon R134A Recharge Kit – Quest By Betty Stephens Auto Cooling The auto cooling system protects the engine from overheating as the vehicle runs. Since the engine burns fuel, it produces energy: one third of it turns into mechanical power, while the rest is transformed into heat. But not all that heat goes straight […]

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February 29, 2024
Casino Air

Casino Air Quality BY Betty Stephens Casinos are one of the few public places that allow indoor smoking. They are faced with a unique air quality challenge. In addition to cigarette smoke, gaming facilities must also control malodors related to customer density, food services and restroom facilities in order to encourage guests to stay and […]

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February 29, 2024
Meeting Room - Cold Temperatures

Cold Air in Business Meetings By Betty Stephens Cold Air in business Meetings do they do that to keep people awake or kill germs? As summer-clad office workers, conference attendees and event guests stream into meeting rooms and reception halls nationwide, many are met with a blast of Arctic air. "Over-chilling" is one of the […]

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February 26, 2024
McQuay Air Conditioning

McQuay First Air Conditioner Classroom Unit By Betty Stephens   McQuay International is a global corporation that designs, manufactures and sells heating, ventilation and air conditioning (HVAC) products, systems, parts and services for commercial buildings. Since 2006, McQuay has been a subsidiary of Daikin Industries, Ltd. McQuay world headquarters are located in Minneapolis, MN, USA. […]

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February 25, 2024
Portable A/C & Spot Cooling Units

Portable A/C Units/Spot Cooling    By Betty Stephens Portable Air Conditioner or Spot Cooler A spot cooler is a portable, self-contained air conditioner used to cool a space. The entire unit is portable and can be moved to another space, if needed. The spot coolers are completely self-contained and do not have condensing units that need […]

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February 23, 2024
PTAC's, Split Ductless Systems

PTACs - Split Ductless Systems    By Betty Stephens The System PTAC (packaged terminal systems) are also known as wall-split air conditioning systems or ductless systems. These PTAC systems which are frequently used in hotels have two separate units, the evaporative unit on the interior and the condensing unit on the exterior, with tubing passing through […]

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February 21, 2024
Target Hacking Attack Linked to HVAC Contractor's Computer

Hacking Target By Betty Stephens The hackers who stole millions of customers' credit and debit card numbers from Target may have used a Pittsburgh-area heating and refrigeration business as the way to get in through a back door. Experts believe the thieves gained access during the busy holiday season to about 40 million credit and […]

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February 21, 2024
Propane (LP) Shortage

LP Liquid Propane Shortage By Betty Stephens The price of the fuel that’s used to heat many north Iowa and southern homes has reached nearly $5 per gallon, and it’s leaving some people wondering how they’ll pay for their LP and many of them are now turning to local lawmakers. Some 14 million households use […]

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