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The Goodman GR9T8 is a two-stage, 9-speed upflow gas furnace rated at 100,000 Btu input and 80% AFUE, built for use with R-32 refrigerant coils. Its two-stage burner and variable-speed blower deliver steadier heat and quieter, more even airflow than a single-stage furnace, and the multi-speed blower also helps with humidity control in summer cooling. At 80% AFUE it sits below high-efficiency condensing models, so it suits homes where venting a condensing furnace is impractical or where a standard chimney flue already exists. It is a solid value pick against comparable two-stage furnaces from Carrier, Trane and Lennox, though it lacks their premium sound packages and longer standard warranties.
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Lowest price we've seen: $1,390.00 on Nov 15 at Alpine Home Air Products. Tracked across 11 stores since Nov 15.
Owners of Goodman two-stage furnaces generally report even, quiet heat and reliable operation, and HVAC technicians note easy parts availability. Complaints center on control board and blower motor failures and on the shorter warranty compared with premium brands.
The Goodman GR9T8 is an upflow gas furnace with a 100,000 Btu input and an 80% AFUE rating. It is a two-stage model with a 9-speed blower and is intended for use with R-32 refrigerant.
The furnace is designed to deliver even heat throughout the home. It is designed, engineered and assembled in the United States.







