» Our furnaces and systems can achieve up to 97% efficiencies — Converting
nearly all the fuel to useful heat for the home. Find out about Annual
Fuel Utilization Efficiency:
» A furnace's efficiency rating, or AFUE (Annual Fuel Utilization Efficiency),
tells you how efficiently the furnace uses fuel (gas or
oil). In general, the higher the efficiency %, the less
fuel the furnace will use to heat your home.
» Heat pumps have heating efficiency ratings indicated as
an HSPF (Heating Seasonal Performance Factor). In general,
the higher the HSPF rating, the less electricity the unit
will use to heat your home.