- Is 92% AFUE worth it over an 80% furnace?
- Yes if you plan to stay in the home several years. At 92% AFUE, about 92 cents of every fuel dollar becomes heat, versus about 80 cents on a standard furnace. The savings grow in cold climates and long heating seasons.
- What size home does 80,000 BTU heat?
- It fits roughly 2,000 to 2,800 square feet in a moderate climate, less in a cold one. Output is 73,680 BTU, so have a load calculation done rather than sizing by square footage alone.
- Does it work with propane?
- Yes, but only with the LPM-07 propane conversion kit, which is not included. Natural gas is the default fuel.
- Can I add air conditioning to it?
- Yes. The 1,200 CFM multi-speed ECM blower can move air for a matching cased coil and condenser. An HVAC contractor should confirm the coil and refrigerant line sizes.
- What is in the box?
- The furnace unit only. The propane kit, thermostat, venting, and condensate parts are sold separately.
- When is the price lowest?
- Furnace prices tend to drop in spring and early summer, outside heating season. The current best new price is $1,199 at Surplus City as of November 7, 2026.
- Where is the 80,000 BTU Low NOx Single-Stage Upflow/Horizontal ECM Multi Speed Gas Furnace 92% 115/60/1 CFM: 1200 cheapest?
- At Skip The Warehouse, for $1,490.46, as of our latest check.
- Where can I buy the 80,000 BTU Low NOx Single-Stage Upflow/Horizontal ECM Multi Speed Gas Furnace 92% 115/60/1 CFM: 1200?
- 6 stores we checked sell it, including Surplus City Liquidators, Skip The Warehouse, The AC Outlet, Walmart, eBay.