Emerging Technologies: Heat Pumps for Cold Climates

By John Dieckmann, P.E., Member ASHRAE, Kurt Roth, Ph.D., Associate Member ASHRAE, and James Brodrick, Ph.D., Member ASHRAE ASHRAE / 2004 / 2 pages

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Air-source heat pumps (ASHP) are air conditioners with a reversing valve and a few additional components that allow the vapor cycle to pump heat either out of the conditioned space (cooling) or into the conditioned space (heating). The resulting cost increase is small compared to an air conditioner with electric resistance heating and much less than the additional cost of a gas furnace.

Citation: ASHRAE Journal, Vol. 46, No. 12, December 2004

Product Code(s): D-23132