Does High Efficiency mean it works better?
A – No it cost less money to operate. A furnace’s efficiency rating, or AFUE (Annual Fuel Utilization Efficiency), tells you how efficiently the furnace uses fuel. In general, the higher the efficiency, the less fuel the furnace will use to heat your home. In 1992, the government established a minimum AFUE rating for furnaces installed in new homes at 78%. In contrast, many furnaces manufactured before 1992 had AFUE ratings as low as 60%. Mid-efficiency furnaces, also known as non-condensing or induced draft furnaces, offer efficiencies from 78% to about 80%. High-efficiency furnaces or condensing or sealed combustion furnaces, offer AFUE ratings from 80% to about 96%. Cooling efficiency for air conditioners and heat pumps is indicated by a SEER (Seasonal Energy Efficiency Ratio) rating, which tells you how efficiently the unit uses electricity. Heat pumps also have heating efficiency ratings, indicated as an HSPF (Heating Seasonal Performance Factor). In general, the higher the SEER o
