Glossary
Efficiency ratings
AFUE
Annual Fuel Utilization Efficiency, a furnace's heating efficiency as a percentage of fuel actually converted to heat for your home. A 95% AFUE furnace turns 95 cents of every gas dollar into heat; an 80% unit sends about 20 cents up the flue.
Why it matters for your home
Missouri winters make AFUE real money: stepping from an old 80% furnace to a 96% model keeps roughly 16 more cents of every gas dollar in your living room. The trade-off is honest, condensing (90%+) furnaces need PVC venting and a condensate drain, which adds install scope in some homes.
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Air conditioning repair & installation Symptoms, repair process, and full cooling scope. Furnace & heating service Repair, replacement, and heat pumps for Missouri winters. 24/7 emergency AC repair Nights, weekends, and holidays across the metro. HVAC service areas St. Charles County, St. Louis City and County.
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