What is the HSPF rating ?
How is the HSPF calculated on a heat pump? If you're looking for an air conditioner or a heat pump, you've probably heard of the abbreviation HSPF. The term HSPF stands for Heating Seasonal Performance Factor. In French, you will find the abbreviation FRSC which means Factor of Seasonal Efficiency in Heating. The HSPF is actually a ratio or rating of energy efficiency that each device is evaluated according to their heating performance. In other words, the higher the HSPF, the less...