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Definition
The percentage of fuel a furnace converts into usable heat over a season. A 96% AFUE furnace turns 96 cents of every gas dollar into heat; the rest exits the flue. Higher AFUE means lower winter gas bills.
Why this matters for your home
- Use this term to ask better questions when you compare estimates.
- Connect the definition to a real decision in our Learning Center guides.
- Confirm how it applies to your home's age, equipment, and Utah climate.
Related pages
Category: Heating