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The Goodman GR9S800603BX is a single-stage gas furnace with a 60,000 BTU input and an 80% AFUE rating, so it delivers roughly 48,000 BTU of heat. Its nine-speed ECM blower gives installers several airflow settings to match the ductwork and coil, and the 17.5-inch cabinet fits standard upflow or horizontal layouts. The Low NOx design suits areas with stricter emissions rules. Against variable-speed and two-stage furnaces it is simpler and less efficient, but it is a straightforward, widely used choice for a basic ducted heating system.
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Owners and installers rate the GR9 series well overall, citing easy installation and dependable heating. Complaints center on the single-stage cycling and the lower efficiency compared with condensing units.
The Goodman GR9S800603BX is a single-stage gas furnace for residential ducted heating systems. It has a 60,000 BTU heating input and an 80% AFUE rating, which gives approximately 48,000 BTU of heating output. Single-stage operation means it heats at one rated stage.
Air is moved by a nine-speed ECM blower, which offers multiple airflow settings for matching the furnace with compatible ducted HVAC equipment. The cabinet is 17.5 inches wide, wider than the 14-inch versions with the same heating capacity.
This version has a Low NOx design that limits nitrogen oxide emissions. It supports both upflow and horizontal airflow arrangements.
