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AFUE Rating Explained — Furnace Efficiency Guide for Ontario Homeowners
AFUE (Annual Fuel Utilization Efficiency) is the percentage of gas that a furnace converts to usable heat. A 96% AFUE furnace converts 96 cents of every gas dollar into heat; 4 cents goes up the exhaust.
AFUE Ratings Explained
| AFUE Rating | Type | Annual Gas Savings vs 80% AFUE |
|---|---|---|
| 80% AFUE | Standard, single-stage | Baseline |
| 96% AFUE | High-efficiency, condensing | $200–$400/year |
| 98% AFUE | Premium, modulating | $220–$430/year |
What AFUE rating should I choose for my Ontario furnace?
For Ontario homes, a 96% AFUE furnace is the standard high-efficiency recommendation. It saves $200-$400/year vs an 80% AFUE unit, with a payback period of 4-7 years on the price premium. Madina Mechanical installs 96-98% AFUE furnaces in Scarborough. Call (416) 424-4328 for a free quote.
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96% AFUE Furnace Installation: (416) 424-4328
