A variety of technologies are available for heating your house. In addition to heat pumps, many homes use the following approaches:
Furnaces and Boilers
By far the most common way to heat a home.
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Wood and Pellet-Fuel Heating
Provides a way to heat your home using biomass or waste sources.
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Electric Resistance Heating
Among the most expensive ways to heat a home.
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Active Solar Heating
Uses the sun to heat either air or liquid and can serve as a supplemental heat source.
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Can draw on a number of energy sources, including electricity, boilers, solar energy, and wood and pellet-fuel heating.
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Small Space Heaters
Less efficient than central heating systems, but can save energy when used appropriately.
While forced-air heating systems rely on the same type of ducts used by heat pumps and air conditioners, water and steam heat systems use radiators that only deliver heat.
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Heat Distribution Systems
Heat is distributed through your home through a variety of ways. Forced-air systems use ducts, which are also used for central air conditioning and for heat pump systems. Likewise, unique heat distribution systems are employed for radiant heating. That leaves two systems that apply broadly to heating systems: steam radiators and hot water radiators.
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