Definitions for "HSPF"
Keywords:  btu, season, seer, pump, eason
Heating Seasonal Performance Factor. Efficiency of a heat pump in the heating mode, taking cycling into account; the amount of heating provided per unit of electricity purchased. The higher the HSPF number, the more efficient the heat pump.
See Chapter 12, Efficiency Ratings, for more information.
The eating easonal erformance actor is a measure of the heating efficiency of a heat pump. The higher the HSPF number, the more efficiently the heat pump heats your home.