Furnace
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A Beginner’s Guide to Heating Systems
No matter what fuel you choose, look for an appliance that will use it efficiently
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How Often Should You Change the Filter?
Every 30 days, when it looks dirty, or according to some other criteria?
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Do I Really Need to Heat the Basement?
A homeowner mulls a recommendation that the heating system be extended to include the basement
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The Hidden Flaw in Some High-Efficiency Furnaces
Hint: Furnaces use two forms of energy
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Manual J Doesn’t Tell You Equipment Capacity
The amount of heating and cooling your house needs isn’t the only factor in determining the size of your heating and cooling equipment
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What’s Wrong With Our New Furnace?
Why isn’t this furnace, which was sized by a heating contractor, keeping anyone comfortable?
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Why Is It So Cold In Here?
The furnace can put out plenty of heat, but the house feels cold unless the furnace is running
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Efficiency Standards, Zero-Emission Vehicles, and Renewable Bio Gas
A roundup of recent developments in green building
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Should the DOE Increase Furnace Efficiency Standards?
The battle over minimum furnace efficiency continues with a new proposal to go to 92 AFUE
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Can Atmospheric Combustion Work in a Spray-Foam-Insulated Attic?
In an attempt to reduce costs, some contractors do questionable retrofits on attic furnaces
