{"product_id":"goodman-80-000-btu-80-gas-furnace-21-width-upflow-horizontal-single-stage-115v-r32","title":"Goodman - 80,000 BTU 80% Gas Furnace - 21\" Width - Upflow \/ Horizontal - Single Stage - 1 - GR9S800804CN15V - R32","description":"\u003ch2\u003e\u003cspan\u003eGoodman - 80,000 BTU 80% Gas Furnace - 21\" Width - Upflow \/ Horizontal - Single Stage - 1 - GR9S800804CN15V - R32\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe GR9S800804CN Goodman gas furnace features high-quality construction and efficient operation at a great value. The GR9S800804CN 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 GR9S800804CN.\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\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 class=\"tg-wa1i\"\u003eSKU\u003c\/th\u003e\n\u003cth class=\"tg-cly1\"\u003eGR9S800804CN\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-wa1i\"\u003eWeight (in lbs)\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003e120.000000\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\"\u003e215358057\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\"\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\"\u003eNew 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\"\u003e80,000\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\"\u003e1760\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\"\u003e11.3 Amps\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\"\u003e21\"\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\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0794\/3104\/1346\/files\/GR9T80_GD9T80-Install-Manual.pdf?v=1759832887\" rel=\"noopener\" 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 href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0794\/3104\/1346\/files\/GR9T80_Specification_Sheet.pdf?v=1759832884\" rel=\"noopener\" 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 data-start=\"94\" data-end=\"704\"\u003e\n\u003cli data-section-id=\"j992mf\" data-start=\"94\" data-end=\"178\"\u003e\n\u003cp data-start=\"96\" data-end=\"178\"\u003e\u003cstrong data-start=\"96\" data-end=\"117\"\u003eReliable Heating:\u003c\/strong\u003e 80,000 BTU output efficiently warms small to medium homes.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"q2i7pq\" data-start=\"179\" data-end=\"271\"\u003e\n\u003cp data-start=\"181\" data-end=\"271\"\u003e\u003cstrong data-start=\"181\" data-end=\"202\"\u003eEnergy Conscious:\u003c\/strong\u003e 80% AFUE provides solid efficiency while keeping costs reasonable.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"17gzkpl\" data-start=\"272\" data-end=\"358\"\u003e\n\u003cp data-start=\"274\" data-end=\"358\"\u003e\u003cstrong data-start=\"274\" data-end=\"300\"\u003eFlexible Installation:\u003c\/strong\u003e 21\" width supports upflow or horizontal configurations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1fadnmy\" data-start=\"359\" data-end=\"447\"\u003e\n\u003cp data-start=\"361\" data-end=\"447\"\u003e\u003cstrong data-start=\"361\" data-end=\"388\"\u003eConsistent Performance:\u003c\/strong\u003e Single-stage operation delivers steady, dependable heat.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1k153qr\" data-start=\"448\" data-end=\"537\"\u003e\n\u003cp data-start=\"450\" data-end=\"537\"\u003e\u003cstrong data-start=\"450\" data-end=\"475\"\u003eStandard Integration:\u003c\/strong\u003e 115V power supply compatible with most residential systems.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1ql9k2j\" data-start=\"538\" data-end=\"617\"\u003e\n\u003cp data-start=\"540\" data-end=\"617\"\u003e\u003cstrong data-start=\"540\" data-end=\"558\"\u003eDurable Build:\u003c\/strong\u003e Engineered for long-term reliability in varied climates.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1u038ps\" data-start=\"618\" data-end=\"704\"\u003e\n\u003cp data-start=\"620\" data-end=\"704\"\u003e\u003cstrong data-start=\"620\" data-end=\"640\"\u003eQuiet Operation:\u003c\/strong\u003e Designed for minimal operational noise during heating cycles.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5 style=\"font-weight: bold;\"\u003eQ\u0026amp;A\u003c\/h5\u003e\n\u003cp data-start=\"130\" data-end=\"398\"\u003e\u003cstrong data-start=\"130\" data-end=\"177\"\u003eQ: What size home is this furnace best for?\u003c\/strong\u003e\u003cbr data-start=\"177\" data-end=\"180\"\u003eA: With \u003cstrong data-start=\"188\" data-end=\"231\"\u003e80,000 BTU input and an 80% AFUE rating\u003c\/strong\u003e, this furnace is ideal for \u003cstrong data-start=\"259\" data-end=\"317\"\u003emedium‑sized homes or residential heating applications\u003c\/strong\u003e. It converts about 80 % of fuel into heat. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"400\" data-end=\"652\"\u003e\u003cstrong data-start=\"400\" data-end=\"435\"\u003eQ: How efficient is this model?\u003c\/strong\u003e\u003cbr data-start=\"435\" data-end=\"438\"\u003eA: It has an \u003cstrong data-start=\"451\" data-end=\"475\"\u003e80 % AFUE efficiency\u003c\/strong\u003e, meaning most of the energy from fuel is turned into usable heat, helping lower heating costs compared with older low‑efficiency furnaces. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"654\" data-end=\"860\"\u003e\u003cstrong data-start=\"654\" data-end=\"706\"\u003eQ: What installation orientations are supported?\u003c\/strong\u003e\u003cbr data-start=\"706\" data-end=\"709\"\u003eA: Designed for \u003cstrong data-start=\"725\" data-end=\"750\"\u003eUpflow and Horizontal\u003c\/strong\u003e installs, offering flexible placement in attics, basements, or closets. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"862\" data-end=\"1070\"\u003e\u003cstrong data-start=\"862\" data-end=\"899\"\u003eQ: What does “single stage” mean?\u003c\/strong\u003e\u003cbr data-start=\"899\" data-end=\"902\"\u003eA: A \u003cstrong data-start=\"907\" data-end=\"933\"\u003esingle‑stage gas valve\u003c\/strong\u003e runs at full capacity whenever heat is needed, providing \u003cstrong data-start=\"991\" data-end=\"1031\"\u003esimple, reliable heating performance\u003c\/strong\u003e. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1072\" data-end=\"1281\"\u003e\u003cstrong data-start=\"1072\" data-end=\"1109\"\u003eQ: What blower motor does it use?\u003c\/strong\u003e\u003cbr data-start=\"1109\" data-end=\"1112\"\u003eA: It features a \u003cstrong data-start=\"1129\" data-end=\"1161\"\u003emulti‑speed ECM blower motor\u003c\/strong\u003e for smoother airflow, quieter operation, and better efficiency than basic motors. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1283\" data-end=\"1531\"\u003e\u003cstrong data-start=\"1283\" data-end=\"1338\"\u003eQ: What fuel and venting does this furnace require?\u003c\/strong\u003e\u003cbr data-start=\"1338\" data-end=\"1341\"\u003eA: It runs on \u003cstrong data-start=\"1355\" data-end=\"1370\"\u003enatural gas\u003c\/strong\u003e and is \u003cstrong data-start=\"1378\" data-end=\"1409\"\u003econvertible to LP (propane)\u003c\/strong\u003e with an optional kit. Standard \u003cstrong data-start=\"1441\" data-end=\"1463\"\u003emetal flue venting\u003c\/strong\u003e is required for safe exhaust. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1533\" data-end=\"1697\"\u003e\u003cstrong data-start=\"1533\" data-end=\"1577\"\u003eQ: What are the electrical requirements?\u003c\/strong\u003e\u003cbr data-start=\"1577\" data-end=\"1580\"\u003eA: Operates on \u003cstrong data-start=\"1595\" data-end=\"1624\"\u003e115 V, single‑phase power\u003c\/strong\u003e, typical for residential furnaces. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1699\" data-end=\"1940\"\u003e\u003cstrong data-start=\"1699\" data-end=\"1767\"\u003eQ: What additional comfort or convenience features are included?\u003c\/strong\u003e\u003cbr data-start=\"1767\" data-end=\"1770\"\u003eA: Includes a \u003cstrong data-start=\"1784\" data-end=\"1865\"\u003eself‑diagnostic control board, hot‑surface igniter, and color‑coded terminals\u003c\/strong\u003e for easier installation and service. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1942\" data-end=\"2142\"\u003e\u003cstrong data-start=\"1942\" data-end=\"1989\"\u003eQ: Is this model environmentally compliant?\u003c\/strong\u003e\u003cbr data-start=\"1989\" data-end=\"1992\"\u003eA: The furnace is \u003cstrong data-start=\"2010\" data-end=\"2029\"\u003eR‑32 compatible\u003c\/strong\u003e, aligning with newer refrigerant standards and environmental requirements.\u003c\/p\u003e\n\u003ch5 style=\"font-weight: bold;\"\u003eMaintenance Tips\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli data-section-id=\"19v370a\" data-start=\"112\" data-end=\"192\"\u003e\n\u003cp data-start=\"114\" data-end=\"192\"\u003e\u003cstrong data-start=\"114\" data-end=\"154\"\u003eReplace air filters every 1–3 months\u003c\/strong\u003e to maintain airflow and efficiency.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1ic9sg7\" data-start=\"193\" data-end=\"273\"\u003e\n\u003cp data-start=\"195\" data-end=\"273\"\u003eKeep \u003cstrong data-start=\"200\" data-end=\"233\"\u003esupply and return vents clear\u003c\/strong\u003e to ensure proper heating performance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1tvp6ez\" data-start=\"274\" data-end=\"374\"\u003e\n\u003cp data-start=\"276\" data-end=\"374\"\u003eMaintain \u003cstrong data-start=\"285\" data-end=\"329\"\u003e2–3 feet of clearance around the furnace\u003c\/strong\u003e for safe operation and proper ventilation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1uwl0t6\" data-start=\"375\" data-end=\"464\"\u003e\n\u003cp data-start=\"377\" data-end=\"464\"\u003eInspect the \u003cstrong data-start=\"389\" data-end=\"414\"\u003econdensate drain line\u003c\/strong\u003e periodically to prevent clogs and water damage.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"10yu6a8\" data-start=\"465\" data-end=\"548\"\u003e\n\u003cp data-start=\"467\" data-end=\"548\"\u003e\u003cstrong data-start=\"467\" data-end=\"510\"\u003eCheck thermostat settings and operation\u003c\/strong\u003e for consistent temperature control.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"tmmhoi\" data-start=\"549\" data-end=\"615\"\u003e\n\u003cp data-start=\"551\" data-end=\"615\"\u003eExamine \u003cstrong data-start=\"559\" data-end=\"589\"\u003event pipes and connections\u003c\/strong\u003e for leaks or blockages.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"10soxn5\" data-start=\"616\" data-end=\"716\"\u003e\n\u003cp data-start=\"618\" data-end=\"716\"\u003eListen for \u003cstrong data-start=\"629\" data-end=\"647\"\u003eunusual noises\u003c\/strong\u003e such as rattling, buzzing, or hissing indicating potential issues.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"10y7fy4\" data-start=\"717\" data-end=\"796\"\u003e\n\u003cp data-start=\"719\" data-end=\"796\"\u003eClean \u003cstrong data-start=\"725\" data-end=\"769\"\u003eblower compartment and internal surfaces\u003c\/strong\u003e to prevent dust buildup.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"9h9hy4\" data-start=\"797\" data-end=\"861\"\u003e\n\u003cp data-start=\"799\" data-end=\"861\"\u003eTest \u003cstrong data-start=\"804\" data-end=\"833\"\u003ecarbon monoxide detectors\u003c\/strong\u003e to ensure safe operation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1ovwicg\" data-start=\"862\" data-end=\"982\" data-is-last-node=\"\"\u003e\n\u003cp data-start=\"864\" data-end=\"982\" data-is-last-node=\"\"\u003eSchedule \u003cstrong data-start=\"873\" data-end=\"908\"\u003eannual professional maintenance\u003c\/strong\u003e to inspect burners, heat exchanger, gas connections, and safety controls.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":43533440974922,"sku":"GR9S800804CN","price":1039.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0638\/2387\/2074\/files\/80_downflow_frontleft-800x800_1_cab89fcc-d7d7-4d81-a870-5027a9b50ee3.webp?v=1776875942","url":"https:\/\/wen0d6-q0.myshopify.com\/es\/products\/goodman-80-000-btu-80-gas-furnace-21-width-upflow-horizontal-single-stage-115v-r32","provider":"Power Gear for Every Journey","version":"1.0","type":"link"}