Goodman GM9S80 80% AFUE Nine-Speed ECM Gas Furnace
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$1,490.00at The AC OutletObserved at 8:43 AM
Compared across 4 stores. Prices are checked against each store and labelled with when.
Compared across 4 stores. Prices are checked against each store and labelled with when.
It checks today's price at every store, compares the alternatives and answers in about a minute.
The Goodman GM9S80 is an 80% AFUE single-stage gas furnace with a nine-speed ECM blower, rated at 120,000 BTU and up to 2,000 CFM for homes around 1,750 to 2,100 square feet. It is an upflow-only unit in a heavy-gauge steel cabinet, with a 115V supply and a 25-amp maximum breaker. The nine-speed blower is the standout: it runs at lower speeds for gentler airflow and quieter cycles than a basic PSC motor. At $888 at eBay as of November 7, 2026, it sits at the low end of what this class of furnace costs new.
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Lowest price we've seen: $1,020.78 on Nov 7 at Voomi Supply. Tracked across 7 stores since Nov 7.
Owner and installer feedback on Goodman's 80% single-stage furnaces is mixed. People like the price and the simple, repairable design, but common complaints center on blower and inducer noise, short part life and the need for careful setup.
