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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.
February 20, 2024
Callahan Roach

Callahan-Roach Flat Rate Price Books and Software. This is a trend and the wave of the future. Read and link to article printed in Dallas Morning News on Thursday Jan. 9, 2014. http://www.dallasnews.com/business/small-business/20140108-arlington-niche-publisher-moves-toward-digital-transformation-to-ensure-future.ece

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February 19, 2024
Drop-In Refrigerants

Drop-in Refrigerants Replace R22, that Mix w/ R22 By Betty Stephens R22 Drop In Replacement R22 is the most common refrigerant in residential and light commercial A/C applications. It has been phased out due to damage that it does to the ozone layer, so availability is limited to existing stockpiles and refrigerant recovered from decommissioned […]

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February 19, 2024
What Happens To My Old Unit?

Recycle Old Cooling Units By Betty Stephens How do you properly dispose of an old air conditioner? When replacing an air conditioner with a new model, what should you do with the old unit? Can an air conditioner be disposed of in the trash? What is the best way to dispose of an air conditioner? […]

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February 18, 2024
Ocean Wave Energy

Australia Set to Deploy the World's Largest Wave Energy Device http://oilprice.com/Latest-Energy-News/World-News/Australia-Set-to-Deploy-the-Worlds-Largest-Wave-Energy-Device.html       "> Please Enable Javascript for this Energy widget to work

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February 18, 2024
World Energy Consumption

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February 17, 2024
Feels Good To Laugh

     

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February 17, 2024
Heated and Cooled Seats in Cars!

Heating and Cooling Car Seats By Betty Stephens Air Conditioned Seats A standard model for air-conditioned seats, developed by scientists at the Department of Energy's National Renewable Energy Laboratory (NREL), works like this: The fabric of the car seat is a porous mesh, so air can flow through it. Multiple fans inside the seat produce […]

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February 15, 2024
Split Ductless System

Split Ductless Systems By Betty Stephens A ductless air conditioner, also called a mini-split system, has two major components: a unit mounted on an inside wall that delivers cool air to the room and a unit mounted on the outside of the house. A pair of refrigerant lines that runs between the two systems one […]

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February 14, 2024
AHRI

Air-Conditioning Heating and Refrigeration Institute (AHRI) By Betty Stephens What is AHRI? AHRI is a trade association of manufacturers and maintains and publishes over 80 standards, mainly related to equipment performance, and many AHRI standards are accepted as ANSI (American National Standards Institute) standards. AHRI’s rating standards, when teamed with ASHRAE’s methods of tests, provide […]

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February 14, 2024
Back-up Generators

Back-up Generators By Betty Stephens A back-up generator is a back-up electrical system that operates automatically Within seconds of a utility outage an automatic transfer switch senses the power loss, commands the generator to start and then transfers the electrical load to the generator. The back-up generator begins supplying power to the circuits. After utility […]

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February 13, 2024
U.S. Energy Demand Compared to World

United States Energy Demand Compared to Other Countries By Betty Stephens Overview Americans make up only 5% of the world's population and yet consume 20% of its energy. The United States is the 2nd largest energy consumer in terms of total use. The U.S. ranks seventh in energy consumption per-capita after Canada and a number […]

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February 13, 2024
Idle Air

Idle Air By Betty Stephens IdleAir provides America’s hard-working long-haul truck drivers an alternative to idling their engines during rest periods. IdleAir service allows truck drivers to turn off their diesel engines and APU’s and still enjoy heating, cooling, standard electric inside and outside the cab, Satellite TV, internet, and many of the comforts of […]

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