{"product_id":"goodman-gd9t960403bn-40k-btu-96-afue-two-stage-downflow-gas-furnace","title":"Goodman 40K BTU 96% AFUE Two-Stage Downflow Furnace | GD9T960403BN","description":"\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003ePremium two-stage efficiency for small homes — the highest efficiency Goodman offers in a downflow configuration. The Goodman GD9T960403BN delivers 40,000 BTU of two-stage heating at 96% AFUE in a compact 17.5\" downflow cabinet purpose-built for closet, alcove, and attic installations. Run quietly at 60% output on mild days for gentler, more even comfort — then step up to full 100% power when winter arrives. Maximum efficiency, smart two-stage comfort, and a downflow design that fits where upflow furnaces simply can't go.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eWhy You'll Love It:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e96% AFUE efficiency\u003c\/strong\u003e — converts 96 cents of every energy dollar into heat, the highest efficiency rating available for a two-stage gas furnace — a significant upgrade over 80% and 92% models\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e40,000 BTU input \/ 38,400 BTU output\u003c\/strong\u003e — ideal heating output for small homes without oversizing or wasted capacity\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eTwo-stage gas valve\u003c\/strong\u003e — runs at 60% output on mild days for gentler, quieter cycling and more even room temperatures, then ramps to 100% full power when temperatures really drop\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e9-speed ECM blower motor\u003c\/strong\u003e — precise, whisper-quiet airflow that outperforms older PSC motor units, delivering consistent comfort even in the tightest spaces\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eDownflow \/ horizontal installation\u003c\/strong\u003e — purpose-built for closets, alcoves, and attic installs where air needs to travel downward through the duct system\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e17.5\" cabinet width\u003c\/strong\u003e — compatible with 1-2 ton R-32 cooling systems for a complete, balanced home comfort setup\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eHeavy-duty aluminized-steel tubular primary heat exchanger\u003c\/strong\u003e — engineered for long-lasting durability and efficient heat transfer with wrinkle-bend technology for added dependability\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eStainless steel secondary heat exchanger\u003c\/strong\u003e — extracts additional heat from exhaust gases to achieve the industry-leading 96% AFUE efficiency rating\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eSilicon nitride igniter\u003c\/strong\u003e — more durable than older hot surface igniters, reducing maintenance calls and replacement costs over the life of the unit\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eSelf-diagnosing control board with constant memory\u003c\/strong\u003e — stores the last fault codes so your technician can diagnose issues fast, cutting service time and costs\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eCompatible with electronic air cleaners and humidifiers\u003c\/strong\u003e — wire directly to the low-voltage terminals on the control board for seamless indoor air quality integration\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eLP convertible\u003c\/strong\u003e — easily field-converted to propane with optional kit, giving you fuel flexibility for your home\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003ePVC\/plastic venting required\u003c\/strong\u003e — high-efficiency condensing operation requires plastic vent pipe, not metal\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eLow NOx emissions\u003c\/strong\u003e — meets air quality requirements for nationwide installation\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eR-32 compatible\u003c\/strong\u003e — future-ready refrigerant support for pairing with modern R-32 cooling systems\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eAHRI Certified and ETL Listed\u003c\/strong\u003e — independently verified for safety and performance\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eMade in the USA\u003c\/strong\u003e — designed, engineered, and assembled domestically\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003eDownflow \/ Horizontal installation only.\u003c\/strong\u003e For upflow applications, see the GR9T960403AN.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e⚠️ \u003cstrong\u003ePVC\/Plastic venting required\u003c\/strong\u003e — this is a 96% AFUE condensing furnace and cannot use metal flue venting.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eSpecs:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eInput: 40,000 BTU | Output: 38,400 BTU\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eAFUE: 96%\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eCabinet Width: 17.5\"\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eStages: Two\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eBlower Motor: 9-Speed ECM\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eFuel Type: Natural Gas (LP Convertible)\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eInstallation: Downflow \/ Horizontal\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eVenting: PVC \/ Plastic\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eVoltage: 115V\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eCompatible Cooling: 1-2 Ton R-32 Systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"standard-markdown grid-cols-1 grid [\u0026amp;_\u0026gt;_*]:min-w-0 gap-3\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 10-year limited parts + lifetime heat exchanger warranty with online registration within 60 days of installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Goodman","offers":[{"title":"No Propane Conversion Kit","offer_id":53383390134586,"sku":"GD9T960403BN","price":2052.0,"currency_code":"USD","in_stock":true},{"title":"+ Propane Conversion Kit ($99)","offer_id":53383390167354,"sku":"GD9T960403BN-LPM07","price":2151.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0869\/3573\/2538\/files\/GD9T960403BN-s1.png?v=1777499300","url":"https:\/\/hvacmore.com\/products\/goodman-gd9t960403bn-40k-btu-96-afue-two-stage-downflow-gas-furnace","provider":"HVAC MORE","version":"1.0","type":"link"}