Many 1990 and earlier model furnaces have Annual Fuel Utilization Efficiency (AFUE) ratings of 65% or less. Today's new high-efficiency furnaces can save up to 50% in operating costs over a ten-year-old furnace. Higher HSPF ratings mean greater energy savings. Heat pumps have SEER ratings like air conditioners and Heating Seasonal Performance Factor (HSPF) ratings for measuring heating efficiency. Depending on your average usage, higher SEER air conditioners can significantly reduce your electric bill. Even though 13 SEER is the minimum efficiency available, we currently offer a line of air conditioners that start at 13 SEER and go all the way up to a 21 SEER. A 13 SEER air conditioner, the EPA "current minimum standard", uses 23% less energy than a 10 SEER unit (EPA standard up until Jan. Higher SEER numbers save more money spent on electricity. Air conditioners may look similar, but their Seasonal Energy Efficiency Rating (SEER) can vary widely. SEER, AFUE and HSPF are all measures of energy efficiency.
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