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What to Know About HSPF Ratings
To do that, look to the heat pump's Heating Seasonal Performance (HSPF) rating. Inspired by the oil crisis of 1973, the Air ...
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Your outdated HVAC could be costing you $1,500 every year — upgrade before major tax rebates disappear
How big your house is, where in the country you live, the pump's SEER/SEER2 and HSPF/HSPF2 ratings, and how people review specific pumps can help you make the best choice. Consumer Reports does ...