AFUE RATING TO COST SAVINGS COMPARISON FOR EVERY $100 SPENT

80% AFUE 93% AFUE 95% AFUE 96% AFUE
AFUE Rating 80% AFUE Rating 93% AFUE Rating 95% AFUE Rating 96%
80% is used to heat your home; 20% escapes through the exhaust of your furnace. 93% is used to heat your home; 7% escapes through the exhaust of your furnace. 95% is used to heat your home; 5% escapes through the exhaust of your furnace. 96% is used to heat your home; 4% escapes through the exhaust of your furnace.