
The Goodman GR9S960403BU is a 40,000 BTU high-efficiency, single-stage gas furnace designed to provide reliable heating performance, energy efficiency, and long-term comfort for residential applications. With a 96% AFUE rating, this furnace converts up to 96% of the fuel it consumes into usable heat, helping homeowners maximize heating efficiency while reducing energy waste.
Engineered for long-term durability, the GR9S960403BU features heavy-duty stainless-steel primary and super-ferritic stainless-steel secondary heat exchangers. These corrosion-resistant heat exchangers are designed to provide dependable heat transfer and reliable heating performance season after season.
The single-stage gas valve provides straightforward, dependable heating operation, while the durable Silicon Nitride igniter is designed for reliable ignition and long service life. A multi-speed induced draft blower helps provide quieter operation while supporting efficient furnace performance.
Designed with serviceability in mind, the GR9S960403BU features an advanced self-diagnostic control board that monitors furnace operation and stores fault codes in memory, helping simplify troubleshooting and maintenance. Convenient left- or right-side gas and electrical connections also provide installation flexibility for different equipment layouts.
The GR9S960403BU offers flexible installation options with support for upflow, horizontal left, and horizontal right configurations. It is certified for both 2-pipe direct vent and 1-pipe non-direct vent applications, while flexible venting options help accommodate a variety of residential installation requirements.
With cabinet air leakage of 1.4% or less, the tightly sealed cabinet helps minimize conditioned air loss and support overall system efficiency. Fully insulated heat exchanger and blower sections help reduce operating noise and minimize heat loss, while the heavy-gauge steel cabinet provides durable protection for internal components.
Designed to meet California's 14 ng/J NOx emission limit, the GR9S960403BU is compliant with applicable SCAQMD Rule 1111 and SJVUAPCD Rule 4905 requirements for eligible installations in the South Coast Air Quality Management District and San Joaquin Valley areas.
With its combination of high-efficiency heating, durable stainless-steel heat exchangers, quiet operation, flexible installation options, and advanced diagnostic controls, the Goodman GR9S960403BU 40,000 BTU 96% AFUE single-stage gas furnace provides dependable performance and lasting residential comfort.
Goodman GR9S960403BU Gas Furnace
Thermostat, venting materials, gas piping, evaporator coil, filter rack, humidifier, electronic air cleaner, installation materials, and any required field-supplied components unless specifically stated.
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