System Efficiency - HSPF

Heating Seasonal Performance Factor

Takes into account the energy efficiency of the Heat Pump over the entire heating season.  This would include all the variations in weather conditions.

Higher number = more efficient

System Efficiency - HSPF

Heating Seasonal Performance Factor

Takes into account the energy efficiency of the Heat Pump over the entire heating season.  This would include all the variations in weather conditions.

Higher number = more efficient