{"product_id":"goodman-80-000-btu-80-gas-furnace-21-width-upflow-horizontal-single-stage-115v-r32-2","title":"Goodman - 80,000 BTU 80% Gas Furnace - 21\" Width - Upflow \/ Horizontal - Single Stage - 115V - R32 - GR9S800805CN","description":"\u003ch2\u003e\u003cspan\u003eGoodman - 80,000 BTU 80% Gas Furnace - 21\" Width - Upflow \/ Horizontal - Single Stage - 115V - R32 - GR9S800805CN\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe GR9S800805CN Goodman gas furnace features high-quality construction and efficient operation at a great value. The GR9S800805CN single-stage, multi-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 GR9S800805CN.\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 medium-sized house (depending on climate)\u003c\/li\u003e\n\u003cli\u003e80,000 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 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-4x00{background-color:#ffffff;border-color:#000000;color:#000000;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-4x00\"\u003eGoodman 80% 80,000 BTU Single Stage Gas Furnace - 21\" Width - Upflow \/ Horizontal\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-4x00\"\u003eSKU\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003eGR9S800805CN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-4x00\"\u003eWeight (in lbs)\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e132.000000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-4x00\"\u003eAHRI Certificate Number\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e215358059\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-4x00\"\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-4x00\"\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-4x00\"\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-4x00\"\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-4x00\"\u003eProduct Features\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003eNew Refrigerant Compliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-4x00\"\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-4x00\"\u003eHeating BTU\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e80,000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-4x00\"\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-4x00\"\u003eMaximum CFM\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e2200\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-4x00\"\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-4x00\"\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-4x00\"\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-4x00\"\u003eMin. Breaker Size\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e11.3 Amps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-4x00\"\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-4x00\"\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-4x00\"\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-4x00\"\u003eWidth\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e21\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-4x00\"\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\u003ca rel=\"noopener\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0794\/3104\/1346\/files\/GR9T80_GD9T80-Install-Manual.pdf?v=1759832887\" target=\"_blank\"\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003eInstallation Manual\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\n\u003ca rel=\"noopener\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0794\/3104\/1346\/files\/GR9T80_Specification_Sheet.pdf?v=1759832884\" target=\"_blank\"\u003e\u003cstrong\u003eSpecifications Sheet\u003c\/strong\u003e\u003c\/a\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=\"cd7hwz\" data-start=\"27\" data-end=\"181\"\u003e\n\u003cp data-start=\"29\" data-end=\"181\"\u003e\u003cstrong data-start=\"29\" data-end=\"60\"\u003e80,000 BTU Heating Capacity\u003c\/strong\u003e – Well‑suited for \u003cstrong data-start=\"79\" data-end=\"97\"\u003emid‑size homes\u003c\/strong\u003e, providing dependable warmth through cooler months without oversizing energy use.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"7pogtt\" data-start=\"183\" data-end=\"330\"\u003e\n\u003cp data-start=\"185\" data-end=\"330\"\u003e\u003cstrong data-start=\"185\" data-end=\"217\"\u003e80% AFUE Standard Efficiency\u003c\/strong\u003e – A \u003cstrong data-start=\"222\" data-end=\"268\"\u003epractical balance of performance and value\u003c\/strong\u003e, offering solid heating performance at a competitive price.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1jkijj9\" data-start=\"332\" data-end=\"477\"\u003e\n\u003cp data-start=\"334\" data-end=\"477\"\u003e\u003cstrong data-start=\"334\" data-end=\"362\"\u003eSingle‑Stage Gas Furnace\u003c\/strong\u003e – Simple on\/off operation ensures \u003cstrong data-start=\"397\" data-end=\"438\"\u003ereliable, straightforward performance\u003c\/strong\u003e with easier maintenance and service.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"crx3k2\" data-start=\"479\" data-end=\"674\"\u003e\n\u003cp data-start=\"481\" data-end=\"674\"\u003e\u003cstrong data-start=\"481\" data-end=\"529\"\u003eUpflow \/ Horizontal Installation Flexibility\u003c\/strong\u003e – Supports \u003cstrong data-start=\"541\" data-end=\"591\"\u003eboth upflow and horizontal duct configurations\u003c\/strong\u003e, making it adaptable to \u003cstrong data-start=\"616\" data-end=\"671\" data-is-only-node=\"\"\u003eattics, basements, closets, or tight utility spaces\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1m7yj6p\" data-start=\"676\" data-end=\"800\"\u003e\n\u003cp data-start=\"678\" data-end=\"800\"\u003e\u003cstrong data-start=\"678\" data-end=\"706\"\u003e21″ Narrow Cabinet Width\u003c\/strong\u003e – A \u003cstrong data-start=\"711\" data-end=\"726\"\u003eslim design\u003c\/strong\u003e that fits into \u003cstrong data-start=\"742\" data-end=\"760\" data-is-only-node=\"\"\u003ecompact spaces\u003c\/strong\u003e without sacrificing heating capacity.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"18h82ad\" data-start=\"802\" data-end=\"924\"\u003e\n\u003cp data-start=\"804\" data-end=\"924\"\u003e\u003cstrong data-start=\"804\" data-end=\"833\"\u003e115 V Power Compatibility\u003c\/strong\u003e – Works with standard household electrical service for \u003cstrong data-start=\"889\" data-end=\"921\"\u003eeasy installation and wiring\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"nbn14f\" data-start=\"926\" data-end=\"1085\"\u003e\n\u003cp data-start=\"928\" data-end=\"1085\"\u003e\u003cstrong data-start=\"928\" data-end=\"949\"\u003eR‑32 System Ready\u003c\/strong\u003e – Designed to pair with \u003cstrong data-start=\"974\" data-end=\"1020\"\u003emodern HVAC systems using R‑32 refrigerant\u003c\/strong\u003e, aligning with current efficiency and environmental standards.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1e1pta1\" data-start=\"1087\" data-end=\"1237\"\u003e\n\u003cp data-start=\"1089\" data-end=\"1237\"\u003e\u003cstrong data-start=\"1089\" data-end=\"1119\"\u003eTrusted Goodman Durability\u003c\/strong\u003e – Built with \u003cstrong data-start=\"1133\" data-end=\"1179\"\u003ereliable components and solid construction\u003c\/strong\u003e, backed by good parts availability and service support.\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=\"133\" data-end=\"400\"\u003e\u003cstrong data-start=\"133\" data-end=\"188\"\u003eQ: What heating capacity does this furnace deliver?\u003c\/strong\u003e\u003cbr data-start=\"188\" data-end=\"191\"\u003eA: This unit provides \u003cstrong data-start=\"213\" data-end=\"233\"\u003e80,000 BTU input\u003c\/strong\u003e and about \u003cstrong data-start=\"244\" data-end=\"273\"\u003e64,000 BTU of usable heat\u003c\/strong\u003e with its \u003cstrong data-start=\"283\" data-end=\"306\"\u003e80% AFUE efficiency\u003c\/strong\u003e, ideal for \u003cstrong data-start=\"318\" data-end=\"361\"\u003emedium‑sized homes when sized correctly\u003c\/strong\u003e. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"402\" data-end=\"648\"\u003e\u003cstrong data-start=\"402\" data-end=\"433\"\u003eQ: What does 80% AFUE mean?\u003c\/strong\u003e\u003cbr data-start=\"433\" data-end=\"436\"\u003eA: \u003cstrong data-start=\"439\" data-end=\"451\"\u003e80% AFUE\u003c\/strong\u003e means \u003cstrong data-start=\"458\" data-end=\"506\"\u003e80% of the fuel’s energy becomes usable heat\u003c\/strong\u003e, while the rest is lost through the flue — a common efficiency level for reliable residential furnaces. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"650\" data-end=\"891\"\u003e\u003cstrong data-start=\"650\" data-end=\"693\"\u003eQ: What type of heating system is this?\u003c\/strong\u003e\u003cbr data-start=\"693\" data-end=\"696\"\u003eA: It’s a \u003cstrong data-start=\"706\" data-end=\"734\"\u003esingle‑stage gas furnace\u003c\/strong\u003e with a \u003cstrong data-start=\"742\" data-end=\"768\"\u003esingle‑stage gas valve\u003c\/strong\u003e that operates at full output when heat is needed for \u003cstrong data-start=\"822\" data-end=\"852\"\u003esimple, dependable heating\u003c\/strong\u003e. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"893\" data-end=\"1133\"\u003e\u003cstrong data-start=\"893\" data-end=\"930\"\u003eQ: What blower motor does it use?\u003c\/strong\u003e\u003cbr data-start=\"930\" data-end=\"933\"\u003eA: The furnace features a \u003cstrong data-start=\"959\" data-end=\"987\"\u003e9‑speed ECM blower motor\u003c\/strong\u003e, providing \u003cstrong data-start=\"999\" data-end=\"1067\"\u003eefficient airflow, quieter operation, and better comfort control\u003c\/strong\u003e compared with basic motors. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1135\" data-end=\"1354\"\u003e\u003cstrong data-start=\"1135\" data-end=\"1178\"\u003eQ: Where can this furnace be installed?\u003c\/strong\u003e\u003cbr data-start=\"1178\" data-end=\"1181\"\u003eA: Supports \u003cstrong data-start=\"1193\" data-end=\"1231\"\u003eupflow and horizontal installation\u003c\/strong\u003e, making it suitable for \u003cstrong data-start=\"1256\" data-end=\"1315\"\u003eattics, crawl spaces, basements, or tight utility areas\u003c\/strong\u003e. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1356\" data-end=\"1551\"\u003e\u003cstrong data-start=\"1356\" data-end=\"1395\"\u003eQ: What fuel types does it support?\u003c\/strong\u003e\u003cbr data-start=\"1395\" data-end=\"1398\"\u003eA: Factory‑configured for \u003cstrong data-start=\"1424\" data-end=\"1439\"\u003enatural gas\u003c\/strong\u003e and field‑convertible to \u003cstrong data-start=\"1465\" data-end=\"1481\"\u003epropane (LP)\u003c\/strong\u003e with the proper conversion kit. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1553\" data-end=\"1760\"\u003e\u003cstrong data-start=\"1553\" data-end=\"1601\"\u003eQ: What ducting and venting does it require?\u003c\/strong\u003e\u003cbr data-start=\"1601\" data-end=\"1604\"\u003eA: As an 80% AFUE model, it requires \u003cstrong data-start=\"1641\" data-end=\"1663\"\u003emetal flue venting\u003c\/strong\u003e for exhaust rather than PVC used on high‑efficiency units.\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=\"j7qy29\" data-start=\"119\" data-end=\"243\"\u003e\n\u003cp data-start=\"121\" data-end=\"243\"\u003e\u003cstrong data-start=\"121\" data-end=\"162\"\u003eReplace Air Filters Every 1–3 Months:\u003c\/strong\u003e Maintains airflow, protects the blower motor, and ensures efficient operation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1nu3kf3\" data-start=\"244\" data-end=\"353\"\u003e\n\u003cp data-start=\"246\" data-end=\"353\"\u003e\u003cstrong data-start=\"246\" data-end=\"279\"\u003eKeep Vents \u0026amp; Registers Clear:\u003c\/strong\u003e Ensure supply and return vents are unobstructed for consistent heating.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"2t8301\" data-start=\"354\" data-end=\"510\"\u003e\n\u003cp data-start=\"356\" data-end=\"510\"\u003e\u003cstrong data-start=\"356\" data-end=\"391\"\u003eAnnual Professional Inspection:\u003c\/strong\u003e Have a technician check burners, heat exchanger, gas pressure, and airflow for safe and efficient furnace operation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1gwvq7d\" data-start=\"511\" data-end=\"639\"\u003e\n\u003cp data-start=\"513\" data-end=\"639\"\u003e\u003cstrong data-start=\"513\" data-end=\"540\"\u003eInspect Venting System:\u003c\/strong\u003e Verify flue pipes and exhaust vents are clear and corrosion-free for proper combustion gas flow.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"68kvu3\" data-start=\"640\" data-end=\"743\"\u003e\n\u003cp data-start=\"642\" data-end=\"743\"\u003e\u003cstrong data-start=\"642\" data-end=\"672\"\u003eMaintain Surrounding Area:\u003c\/strong\u003e Keep the furnace area free of dust, debris, and flammable materials.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1beue76\" data-start=\"744\" data-end=\"842\"\u003e\n\u003cp data-start=\"746\" data-end=\"842\"\u003e\u003cstrong data-start=\"746\" data-end=\"777\"\u003eCheck Thermostat Operation:\u003c\/strong\u003e Ensure the thermostat supports efficient single-stage heating.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"zw361i\" data-start=\"843\" data-end=\"970\"\u003e\n\u003cp data-start=\"845\" data-end=\"970\"\u003e\u003cstrong data-start=\"845\" data-end=\"875\"\u003eMonitor for Unusual Signs:\u003c\/strong\u003e Strange noises, odors, or inconsistent heating should prompt immediate professional service.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":46812774006921,"sku":"GR9S800805CN","price":1414.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0759\/2443\/9177\/files\/80_upflow_frontleft-800x800_bea6c8a0-8be7-4937-acbb-643465afb118.webp?v=1779806352","url":"https:\/\/mobility-ready.com\/products\/goodman-80-000-btu-80-gas-furnace-21-width-upflow-horizontal-single-stage-115v-r32-2","provider":"Supplies for Happy Tails","version":"1.0","type":"link"}