Gas FurnacesOur gas furnaces will keep you warm in any kind of weather. They have an up to 97% AFUE rating, which means that 97 cents out of every dollar you spend on heating energy directly warms your home. Two of our three EarthSmart gas furnaces are variable-speed furnaces, which means that they run at a low speed most of the time to save energy. However, when it is very cold, they ramp up to a high speed to provide all the heat that you need to stay warm. Don’t waste the energy if you don’t need to.
GMSS96/GCSS96 1-STAGE, GAS FURNACE
GCVC96/GMVC96 2-STAGE, VARIABLE-SPEED,
GCVM97/GMVM97 MODULATING, VARIABLE-SPEED,