Calculate Heating Seasonal Performance Factor with free GaX HSPF Calculator
HSPF (Heating Seasonal Performance Factor) represents the total heating output of a heat pump (including supplementary electric heat) during the normal heating season (in Btu) as compared to the total electricity consumed (in watt-hours) during the same period.
Earlier we talk about free web base scientific calculator but that not going to help you much here. If you need to reduce your time on complex calculation on HSPF then GaX HSPF Calculator will be a good option.
GAX HSPF Calculator is a tiny Java base application using which you can calculate HSPF of single-speed, two-speed, and variable-speed compressor systems.
