The main furnace types are natural gas, propane, electric, and oil. Within each fuel category there are single-stage, two-stage, and modulating (variable-output) models, as well as high-efficiency condensing furnaces that recapture exhaust heat. Most Spokane-area homes use single- or two-stage natural gas furnaces.
Furnace types
- Natural gas — Most common, lowest operating cost
- Propane — Where natural gas is unavailable
- Electric — Higher operating cost, simpler install
- Oil — Rare in our region
- Single-stage, two-stage, or modulating
- Standard or high-efficiency condensing
We help you pick the right unit and size during a free in-home estimate. See furnace installation.
