Solar Space Heating and Cooling Just as solar energy can heat the water for a building, it can also heat and cool the air. Space…
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Central Gas Furnace Terms & Definitions Annual Fuel Utilization Efficiency (AFUE): The Annual Fuel Utilization Efficiency (AFUE) rating, indicates how well a furnace converts energy into…
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Radiant Heating Radiant heating systems supply heat directly to the floor or to panels in the wall or ceiling of a house. The systems depend…
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Oil-Fired Boilers and Furnaces Oil-fired furnaces and boilers are a popular choice in areas of the country with limited access to natural gas, such as…
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Selecting Heating Fuel and System Types Selecting the fuel and heating system best suited for your needs depends on the following factors: The cost and…
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A variety of technologies are available for heating your house. In addition to heat pumps, which are discussed separately, many homes use the following approaches:…
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Central Air Conditioning Definitions Air Conditioner: Assembly of equipment for the simultaneous control of air temperature, relative humidity, purity, and motion. Air Cooled: Uses a fan to…
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RIGHT-SIZED AIR CONDITIONERS: MECHANICAL EQUIPMENT IMPROVEMENTS The ENERGY STAR Program promotes right-sized air conditioners where heating and cooling contractors carefully match system capacity to home…
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Ductless, Mini-Split Heat Pumps Ductless, mini-split-system heat pumps (mini splits) make good retrofit add-ons to houses with "non-ducted" heating systems, such as hydronic (hot water…
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Types of Cooling Systems Central Air Conditioners Central air conditioners circulate cool air through a system of supply and return ducts. Supply ducts and registers…
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