{"product_id":"goodman-40-000-btu-80-gas-furnace-14-width-upflow-horizontal-single-stage-115v-r32","title":"Goodman - 40,000 BTU 80% Gas Furnace - 14\" Width - Upflow \/ Horizontal - Single Stage - 115V - R32 - GR9S800403AX","description":"\u003ch2\u003e\u003cspan\u003eGoodman - 40,000 BTU 80% Gas Furnace - 14\" Width - Upflow \/ Horizontal - Single Stage - 115V - R32 - GR9S800403AX\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe GRS800403AX Goodman low NOx gas furnace features high-quality construction and efficient operation at a great value. The GR9S800403AX single-stage, 9-speed furnace utilizes Goodman's superior heat exchanger design to provide efficient, reliable heating to your home. If you're looking to cut your energy bills and improve your comfort without breaking the bank, your search stops with the Goodman GR9S800403AX.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5\u003e\u003cspan\u003eFeatures\u003c\/span\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003eThis furnace is ideal to heat a smaller house (depending on climate)\u003c\/li\u003e\n\u003cli\u003e40,000 BTU 80% efficient natural gas furnace\u003c\/li\u003e\n\u003cli\u003eRequires metal flue venting\u003c\/li\u003e\n\u003cli\u003eCan be used in the upflow or horizontal (right or left) orientation\u003c\/li\u003e\n\u003cli\u003eCan be converted to an LP furnace with a conversion kit (sold separately)\u003c\/li\u003e\n\u003cli\u003eInnovative design for electrical efficiency, safety, and lower sound output\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eSpecifications\u003cspan style=\"font-size: 0.875rem;\"\u003e\u003c\/span\u003e\n\u003c\/h5\u003e\n\u003cstyle type=\"text\/css\"\u003e\n.tg  {border-collapse:collapse;border-spacing:0;}\n.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;\n  overflow:hidden;padding:10px 5px;word-break:normal;}\n.tg th{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;\n  font-weight:normal;overflow:hidden;padding:10px 5px;word-break:normal;}\n.tg .tg-cly1{text-align:left;vertical-align:middle}\n.tg .tg-wa1i{font-weight:bold;text-align:center;vertical-align:middle}\n\u003c\/style\u003e\n\u003ctable class=\"tg\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth colspan=\"2\" class=\"tg-wa1i\"\u003eGoodman 80% 40,000 BTU Single Stage Gas Furnace - 14\" Width - Upflow \/ Horizontal\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-wa1i\"\u003eSKU\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003eGR9S800403AX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-wa1i\"\u003eWeight (in lbs)\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e86.000000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-wa1i\"\u003eAHRI Certificate Number\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e215358046\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-wa1i\"\u003eAirflow Direction\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003eUpflow\/Horizontal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-wa1i\"\u003eExhaust Flue Requirement\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003eMetal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-wa1i\"\u003eR-32 Compliant\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-wa1i\"\u003eBrand\/Manufacturer\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003eGoodman\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-wa1i\"\u003eProduct Features\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003eLow NOx, New Refrigerant Compliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-wa1i\"\u003eFurnace Efficiency \/ AFUE\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e80%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-wa1i\"\u003eHeating BTU\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e40,000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-wa1i\"\u003eBlower Motor\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e9-Speed - ECM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-wa1i\"\u003eMaximum CFM\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e1200\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-wa1i\"\u003eHorsepower\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e1\/2 HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-wa1i\"\u003eConfiguration\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003eUpflow\/Horizontal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-wa1i\"\u003eElectrical\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e115 V. 1 Phase 60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-wa1i\"\u003eMax Breaker Size\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e15 Amps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-wa1i\"\u003eMin. Breaker Size\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e7.7 Amps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-wa1i\"\u003eLow NOx\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003eLow NOx\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-wa1i\"\u003eBurner Stages\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003eSingle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-wa1i\"\u003eFuel Type\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003ePropane, Natural Gas\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-wa1i\"\u003eHeight\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e33 3\/8\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-wa1i\"\u003eWidth\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e14\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-wa1i\"\u003eDepth\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e28\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch5\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eManual\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003ca style=\"color: rgb(43, 0, 255);\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0794\/3104\/1346\/files\/GR9S80_GD9S80-Install-Manual_1.pdf?v=1759819127\" rel=\"noopener\" target=\"_blank\"\u003eInstallation Manual\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\n\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0794\/3104\/1346\/files\/GD9S80_Spec_Sheet_f46186de-73d7-4ce2-94a3-7f8d3d18f343.pdf?v=1759819124\" rel=\"noopener\" target=\"_blank\"\u003eSpecifications Sheet\u003c\/a\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 style=\"font-weight: bold;\"\u003eWhat our Experts Think\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli data-section-id=\"1gxkmpn\" data-start=\"27\" data-end=\"330\"\u003e\n\u003cp data-start=\"29\" data-end=\"330\"\u003e\u003cstrong data-start=\"29\" data-end=\"69\"\u003eEfficient \u0026amp; Compact Heating Solution\u003c\/strong\u003e\u003cbr data-start=\"69\" data-end=\"72\"\u003eThe \u003cstrong data-start=\"78\" data-end=\"102\"\u003eGoodman GR9S800403AX\u003c\/strong\u003e is a \u003cstrong data-start=\"108\" data-end=\"158\" data-is-only-node=\"\"\u003e40,000 BTU, 80 % AFUE single‑stage gas furnace\u003c\/strong\u003e designed for \u003cstrong data-start=\"172\" data-end=\"199\"\u003eefficient heat delivery\u003c\/strong\u003e in smaller homes or spaces, converting most fuel into usable warmth with steady performance. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1khuxcj\" data-start=\"332\" data-end=\"618\"\u003e\n\u003cp data-start=\"334\" data-end=\"618\"\u003e\u003cstrong data-start=\"334\" data-end=\"366\"\u003eModern R‑32 Compliant Design\u003c\/strong\u003e\u003cbr data-start=\"366\" data-end=\"369\"\u003eBuilt to meet \u003cstrong data-start=\"385\" data-end=\"426\"\u003eR‑32 refrigerant system compatibility\u003c\/strong\u003e, this furnace supports current HVAC configurations and complies with \u003cstrong data-start=\"496\" data-end=\"527\" data-is-only-node=\"\"\u003eLow‑NOx emissions standards\u003c\/strong\u003e, helping reduce environmental impact where required. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"ky0s8u\" data-start=\"620\" data-end=\"863\"\u003e\n\u003cp data-start=\"622\" data-end=\"863\"\u003e\u003cstrong data-start=\"622\" data-end=\"652\"\u003eReliable, Simple Operation\u003c\/strong\u003e\u003cbr data-start=\"652\" data-end=\"655\"\u003eThe \u003cstrong data-start=\"661\" data-end=\"687\"\u003esingle‑stage gas valve\u003c\/strong\u003e ensures consistent heat output whenever called, offering straightforward, dependable winter comfort without the complexity of modulation. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1w3ndn6\" data-start=\"865\" data-end=\"1121\"\u003e\n\u003cp data-start=\"867\" data-end=\"1121\"\u003e\u003cstrong data-start=\"867\" data-end=\"896\"\u003eQuiet \u0026amp; Efficient Airflow\u003c\/strong\u003e\u003cbr data-start=\"896\" data-end=\"899\"\u003eA \u003cstrong data-start=\"903\" data-end=\"931\"\u003e9‑speed ECM blower motor\u003c\/strong\u003e improves airflow control and energy use compared with traditional motors, delivering \u003cstrong data-start=\"1017\" data-end=\"1057\" data-is-only-node=\"\"\u003equiet, smoother comfort distribution\u003c\/strong\u003e throughout living spaces. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"3ts3da\" data-start=\"1123\" data-end=\"1400\"\u003e\n\u003cp data-start=\"1125\" data-end=\"1400\"\u003e\u003cstrong data-start=\"1125\" data-end=\"1163\"\u003eDurable Construction \u0026amp; Diagnostics\u003c\/strong\u003e\u003cbr data-start=\"1163\" data-end=\"1166\"\u003eFeatures like a \u003cstrong data-start=\"1184\" data-end=\"1238\"\u003eheavy‑duty aluminized‑steel tubular heat exchanger\u003c\/strong\u003e, \u003cstrong data-start=\"1240\" data-end=\"1271\" data-is-only-node=\"\"\u003edurable hot‑surface igniter\u003c\/strong\u003e, and \u003cstrong data-start=\"1277\" data-end=\"1310\"\u003eself‑diagnostic control board\u003c\/strong\u003e support long‑term reliability and easier servicing. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"15wqm90\" data-start=\"1402\" data-end=\"1632\"\u003e\n\u003cp data-start=\"1404\" data-end=\"1632\"\u003e\u003cstrong data-start=\"1404\" data-end=\"1430\"\u003eVersatile Installation\u003c\/strong\u003e\u003cbr data-start=\"1430\" data-end=\"1433\"\u003eIts \u003cstrong data-start=\"1439\" data-end=\"1488\"\u003e14″ width and upflow\/horizontal configuration\u003c\/strong\u003e fit in compact spaces such as attics, closets, or crawl spaces—great for tight installation environments.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 style=\"font-weight: bold;\"\u003e\n\u003cbr\u003eQ\u0026amp;A\u003c\/h5\u003e\n\u003cp data-start=\"72\" data-end=\"321\"\u003e\u003cstrong data-start=\"72\" data-end=\"131\"\u003eQ1: What size and efficiency does this furnace deliver?\u003c\/strong\u003e\u003cbr data-start=\"131\" data-end=\"134\"\u003eA: The \u003cstrong data-start=\"141\" data-end=\"165\"\u003eGoodman GR9S800403AX\u003c\/strong\u003e provides \u003cstrong data-start=\"175\" data-end=\"217\"\u003e40,000 BTU input heating with 80% AFUE\u003c\/strong\u003e, meaning most fuel is efficiently turned into heat for your home. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"323\" data-end=\"523\"\u003e\u003cstrong data-start=\"323\" data-end=\"374\"\u003eQ2: What operation type and stages does it use?\u003c\/strong\u003e\u003cbr data-start=\"374\" data-end=\"377\"\u003eA: It’s a \u003cstrong data-start=\"387\" data-end=\"415\"\u003esingle‑stage gas furnace\u003c\/strong\u003e with a straightforward on\/off heating cycle for reliable performance. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"525\" data-end=\"741\"\u003e\u003cstrong data-start=\"525\" data-end=\"579\"\u003eQ3: Which installation orientations are supported?\u003c\/strong\u003e\u003cbr data-start=\"579\" data-end=\"582\"\u003eA: Supports both \u003cstrong data-start=\"599\" data-end=\"638\"\u003eupflow and horizontal installations\u003c\/strong\u003e, giving flexibility for attic, crawl space, or closet placement. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"743\" data-end=\"953\"\u003e\u003cstrong data-start=\"743\" data-end=\"795\"\u003eQ4: What blower and motor features are included?\u003c\/strong\u003e\u003cbr data-start=\"795\" data-end=\"798\"\u003eA: Includes a \u003cstrong data-start=\"812\" data-end=\"863\"\u003emulti‑speed ECM blower motor (up to ~1,200 CFM)\u003c\/strong\u003e for quieter operation and smoother airflow control. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"955\" data-end=\"1129\"\u003e\u003cstrong data-start=\"955\" data-end=\"1000\"\u003eQ5: What are the electrical requirements?\u003c\/strong\u003e\u003cbr data-start=\"1000\" data-end=\"1003\"\u003eA: Operates on \u003cstrong data-start=\"1018\" data-end=\"1046\"\u003e115 V single‑phase 60 Hz\u003c\/strong\u003e with typical breaker sizing around \u003cstrong data-start=\"1082\" data-end=\"1090\"\u003e15 A\u003c\/strong\u003e. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1131\" data-end=\"1343\"\u003e\u003cstrong data-start=\"1131\" data-end=\"1174\"\u003eQ6: What fuel and venting are required?\u003c\/strong\u003e\u003cbr data-start=\"1174\" data-end=\"1177\"\u003eA: Runs on \u003cstrong data-start=\"1188\" data-end=\"1239\"\u003enatural gas (convertible to propane with a kit)\u003c\/strong\u003e and requires \u003cstrong data-start=\"1253\" data-end=\"1275\"\u003emetal flue venting\u003c\/strong\u003e typical of 80% AFUE furnaces. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1345\" data-end=\"1531\"\u003e\u003cstrong data-start=\"1345\" data-end=\"1386\"\u003eQ7: What are the physical dimensions?\u003c\/strong\u003e\u003cbr data-start=\"1386\" data-end=\"1389\"\u003eA: Cabinet measures about \u003cstrong data-start=\"1415\" data-end=\"1453\"\u003e14″ wide × 33 3\/8″ high × 28″ deep\u003c\/strong\u003e, ideal for compact installation spaces.\u003c\/p\u003e\n\u003ch5 style=\"font-weight: bold;\"\u003e\n\u003cbr\u003eMaintenance Tips\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli data-section-id=\"1c18by0\" data-start=\"127\" data-end=\"256\"\u003e\n\u003cp data-start=\"129\" data-end=\"256\"\u003e\u003cstrong data-start=\"129\" data-end=\"168\"\u003eChange Air Filters Every 1–3 Months\u003c\/strong\u003e – Ensures proper airflow, protects the blower motor, and improves heating efficiency.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"19f1xus\" data-start=\"257\" data-end=\"432\"\u003e\n\u003cp data-start=\"259\" data-end=\"432\"\u003e\u003cstrong data-start=\"259\" data-end=\"304\"\u003eAnnual Heat Exchanger \u0026amp; Burner Inspection\u003c\/strong\u003e – Have a technician check for cracks, corrosion, or soot buildup to ensure safe combustion and maintain 80% AFUE performance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"zs86b8\" data-start=\"433\" data-end=\"538\"\u003e\n\u003cp data-start=\"435\" data-end=\"538\"\u003e\u003cstrong data-start=\"435\" data-end=\"467\"\u003eClean Condensate Drain \u0026amp; Pan\u003c\/strong\u003e – Clear any blockages to prevent water buildup and microbial growth.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"gq3btc\" data-start=\"539\" data-end=\"673\"\u003e\n\u003cp data-start=\"541\" data-end=\"673\"\u003e\u003cstrong data-start=\"541\" data-end=\"582\"\u003eCheck Electrical \u0026amp; Control Components\u003c\/strong\u003e – Inspect wiring, limit switches, and thermostat connections for wear or loose contacts.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1hjt1y3\" data-start=\"674\" data-end=\"808\"\u003e\n\u003cp data-start=\"676\" data-end=\"808\"\u003e\u003cstrong data-start=\"676\" data-end=\"713\"\u003eKeep Vents \u0026amp; Returns Unobstructed\u003c\/strong\u003e – Maintain clear supply and return air paths to prevent overheating and maintain efficiency.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1x5z02e\" data-start=\"809\" data-end=\"974\"\u003e\n\u003cp data-start=\"811\" data-end=\"974\"\u003e\u003cstrong data-start=\"811\" data-end=\"851\"\u003eSchedule Professional Annual Service\u003c\/strong\u003e – A qualified HVAC tech should test safety controls, check gas pressure, verify ignition, and optimize system performance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":43533440450634,"sku":"GR9S800403AX","price":865.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0638\/2387\/2074\/files\/80_upflow_frontright-800x800_64f42d43-9244-4c9d-a1ae-d72860a497fc.webp?v=1776875916","url":"https:\/\/wen0d6-q0.myshopify.com\/products\/goodman-40-000-btu-80-gas-furnace-14-width-upflow-horizontal-single-stage-115v-r32","provider":"Power Gear for Every Journey","version":"1.0","type":"link"}