{"product_id":"goodman-100-000-btu-80-gas-furnace-21-width-downflow-horizontal-single-stage-115v-r32","title":"Goodman - 100,000 BTU 80% Gas Furnace - 21\" Width - Downflow \/ Horizontal - Single Stage - 115V - R32 - GD9S801005CN","description":"\u003ch2\u003e\u003cspan\u003eGoodman - 100,000 BTU 80% Gas Furnace - 21\" Width - Downflow \/ Horizontal - Single Stage - 115V - R32 - GD9S801005CN\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe GD9S801005CN Goodman gas furnace features high-quality construction and efficient operation at a great value. The GD9S801005CN 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 GD9S801005CN.\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 to large house (depending on climate)\u003c\/li\u003e\n\u003cli\u003e100,000 BTU 80% efficient natural gas furnace\u003c\/li\u003e\n\u003cli\u003eSelf-diagnostic control board\u003c\/li\u003e\n\u003cli\u003eCan be used in the downflow or horizontal (left or right) 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% 100,000 BTU Single Stage Gas Furnace - 21\" Width - Downflow \/ 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\"\u003eGD9S801005CN\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\"\u003e115.000000\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\"\u003e215358043\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\"\u003eDownflow\/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\"\u003e100,000\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\"\u003e2000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"tg-4x00\"\u003eConfiguration\u003c\/td\u003e\n\u003ctd class=\"tg-cly1\"\u003eDownflow\/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\"\u003e25 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\"\u003e14.3 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\/GR9S80_GD9S80-Install-Manual.pdf?v=1759910039\" 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\/GR9S80_Product_Specs.pdf?v=1759910035\" 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=\"nqhszv\" data-start=\"27\" data-end=\"229\"\u003e\n\u003cp data-start=\"29\" data-end=\"229\"\u003e\u003cstrong data-start=\"29\" data-end=\"56\"\u003eSolid Everyday Heating:\u003c\/strong\u003e The \u003cstrong data-start=\"61\" data-end=\"102\" data-is-only-node=\"\"\u003e\u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eGoodman GD9S801005CN Gas Furnace\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e delivers \u003cstrong data-start=\"112\" data-end=\"141\"\u003e100,000 BTU with 80% AFUE\u003c\/strong\u003e, providing \u003cstrong data-start=\"153\" data-end=\"197\"\u003edependable warmth and steady performance\u003c\/strong\u003e for \u003cstrong data-start=\"202\" data-end=\"228\"\u003emedium to larger homes\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"3umyjg\" data-start=\"231\" data-end=\"408\"\u003e\n\u003cp data-start=\"233\" data-end=\"408\"\u003e\u003cstrong data-start=\"233\" data-end=\"267\"\u003eSimple Single‑Stage Operation:\u003c\/strong\u003e The \u003cstrong data-start=\"272\" data-end=\"295\" data-is-only-node=\"\"\u003esingle‑stage design\u003c\/strong\u003e offers \u003cstrong data-start=\"303\" data-end=\"329\"\u003econsistent heat output\u003c\/strong\u003e, making it \u003cstrong data-start=\"341\" data-end=\"383\"\u003eeasy to install, service, and maintain\u003c\/strong\u003e with fewer moving parts.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"s6141r\" data-start=\"410\" data-end=\"598\"\u003e\n\u003cp data-start=\"412\" data-end=\"598\"\u003e\u003cstrong data-start=\"412\" data-end=\"444\"\u003eDownflow \u0026amp; Horizontal Ready:\u003c\/strong\u003e Designed for \u003cstrong data-start=\"458\" data-end=\"498\" data-is-only-node=\"\"\u003edownflow or horizontal installations\u003c\/strong\u003e, this furnace fits \u003cstrong data-start=\"518\" data-end=\"567\"\u003eattics, basements, or tight mechanical spaces\u003c\/strong\u003e where upflow units won’t work.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1e7h22o\" data-start=\"600\" data-end=\"740\"\u003e\n\u003cp data-start=\"602\" data-end=\"740\"\u003e\u003cstrong data-start=\"602\" data-end=\"626\"\u003eRobust Construction:\u003c\/strong\u003e Built with \u003cstrong data-start=\"638\" data-end=\"697\" data-is-only-node=\"\"\u003equality Goodman components and a durable heat exchanger\u003c\/strong\u003e, engineered for \u003cstrong data-start=\"714\" data-end=\"739\"\u003elong‑term reliability\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"rh9lt3\" data-start=\"742\" data-end=\"918\" data-is-last-node=\"\"\u003e\n\u003cp data-start=\"744\" data-end=\"918\" data-is-last-node=\"\"\u003e\u003cstrong data-start=\"744\" data-end=\"771\"\u003eBudget‑Friendly Choice:\u003c\/strong\u003e A \u003cstrong data-start=\"774\" data-end=\"809\" data-is-only-node=\"\"\u003ecost‑effective heating solution\u003c\/strong\u003e that balances \u003cstrong data-start=\"824\" data-end=\"849\"\u003eperformance and value\u003c\/strong\u003e, ideal for \u003cstrong data-start=\"861\" data-end=\"917\"\u003ehomeowners seeking straightforward, reliable comfort\u003c\/strong\u003e.\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=\"79\" data-end=\"321\"\u003e\u003cstrong data-start=\"79\" data-end=\"134\"\u003eQ: What heating capacity does this furnace deliver?\u003c\/strong\u003e\u003cbr data-start=\"134\" data-end=\"137\"\u003eA: The Goodman \u003cstrong data-start=\"152\" data-end=\"168\"\u003eGD9S801005CN\u003c\/strong\u003e has a \u003cstrong data-start=\"175\" data-end=\"217\"\u003e100,000 BTU input (~80,000 BTU output)\u003c\/strong\u003e, suitable for \u003cstrong data-start=\"232\" data-end=\"257\"\u003emedium to large homes\u003c\/strong\u003e when sized appropriately. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"323\" data-end=\"560\"\u003e\u003cstrong data-start=\"323\" data-end=\"365\"\u003eQ: What does the 80% AFUE rating mean?\u003c\/strong\u003e\u003cbr data-start=\"365\" data-end=\"368\"\u003eA: \u003cstrong data-start=\"371\" data-end=\"383\"\u003e80% AFUE\u003c\/strong\u003e means about \u003cstrong data-start=\"396\" data-end=\"454\"\u003e80 ¢ of every dollar spent on fuel becomes usable heat\u003c\/strong\u003e, offering \u003cstrong data-start=\"465\" data-end=\"493\"\u003egood standard efficiency\u003c\/strong\u003e for dependable home heating. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"562\" data-end=\"791\"\u003e\u003cstrong data-start=\"562\" data-end=\"612\"\u003eQ: Is this a single‑stage or variable furnace?\u003c\/strong\u003e\u003cbr data-start=\"612\" data-end=\"615\"\u003eA: It’s a \u003cstrong data-start=\"625\" data-end=\"653\"\u003esingle‑stage gas furnace\u003c\/strong\u003e — the burner operates at full capacity when heating is needed for \u003cstrong data-start=\"720\" data-end=\"752\"\u003esimple, reliable performance\u003c\/strong\u003e. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"793\" data-end=\"1028\"\u003e\u003cstrong data-start=\"793\" data-end=\"830\"\u003eQ: What blower motor does it use?\u003c\/strong\u003e\u003cbr data-start=\"830\" data-end=\"833\"\u003eA: Equipped with a \u003cstrong data-start=\"852\" data-end=\"892\"\u003e9‑speed multi‑speed ECM blower motor\u003c\/strong\u003e for \u003cstrong data-start=\"897\" data-end=\"964\"\u003ebetter airflow control, quieter operation, and improved comfort\u003c\/strong\u003e compared to basic motors. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1030\" data-end=\"1254\"\u003e\u003cstrong data-start=\"1030\" data-end=\"1082\"\u003eQ: What installation orientations are supported?\u003c\/strong\u003e\u003cbr data-start=\"1082\" data-end=\"1085\"\u003eA: Designed for \u003cstrong data-start=\"1101\" data-end=\"1141\"\u003edownflow and horizontal installation\u003c\/strong\u003e, giving flexibility for \u003cstrong data-start=\"1166\" data-end=\"1215\"\u003eattics, basements, or horizontal duct layouts\u003c\/strong\u003e. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1256\" data-end=\"1405\"\u003e\u003cstrong data-start=\"1256\" data-end=\"1290\"\u003eQ: What power does it require?\u003c\/strong\u003e\u003cbr data-start=\"1290\" data-end=\"1293\"\u003eA: Runs on \u003cstrong data-start=\"1304\" data-end=\"1332\"\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=\"1407\" data-end=\"1591\"\u003e\u003cstrong data-start=\"1407\" data-end=\"1446\"\u003eQ: Does it use modern refrigerants?\u003c\/strong\u003e\u003cbr data-start=\"1446\" data-end=\"1449\"\u003eA: Yes — it’s \u003cstrong data-start=\"1463\" data-end=\"1509\"\u003ecompatible with R32 refrigerant components\u003c\/strong\u003e, making it suitable for modern HVAC splits.\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=\"1qgbslz\" data-start=\"75\" data-end=\"202\"\u003e\n\u003cp data-start=\"77\" data-end=\"202\"\u003e\u003cstrong data-start=\"77\" data-end=\"109\"\u003eReplace Air Filters Monthly:\u003c\/strong\u003e Use quality filters every \u003cstrong data-start=\"136\" data-end=\"150\"\u003e1–3 months\u003c\/strong\u003e to maintain airflow and protect the blower motor.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1tl0ax3\" data-start=\"203\" data-end=\"306\"\u003e\n\u003cp data-start=\"205\" data-end=\"306\"\u003e\u003cstrong data-start=\"205\" data-end=\"238\"\u003eKeep Vents \u0026amp; Registers Clear:\u003c\/strong\u003e Ensure supply and return vents are unobstructed for even heating.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1u9pgd0\" data-start=\"307\" data-end=\"428\"\u003e\n\u003cp data-start=\"309\" data-end=\"428\"\u003e\u003cstrong data-start=\"309\" data-end=\"336\"\u003eInspect Venting System:\u003c\/strong\u003e Check intake and exhaust pipes for blockages, debris, or damage to ensure safe operation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"5otpr6\" data-start=\"429\" data-end=\"542\"\u003e\n\u003cp data-start=\"431\" data-end=\"542\"\u003e\u003cstrong data-start=\"431\" data-end=\"460\"\u003eClean Around the Furnace:\u003c\/strong\u003e Maintain \u003cstrong data-start=\"470\" data-end=\"490\"\u003e2–3 ft clearance\u003c\/strong\u003e to prevent dust buildup and allow proper airflow.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1h4g7cq\" data-start=\"543\" data-end=\"677\"\u003e\n\u003cp data-start=\"545\" data-end=\"677\"\u003e\u003cstrong data-start=\"545\" data-end=\"574\"\u003eMonitor Blower Operation:\u003c\/strong\u003e Single-stage blowers should run steadily and quietly; unusual sounds may indicate maintenance needs.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"zsszfk\" data-start=\"678\" data-end=\"806\"\u003e\n\u003cp data-start=\"680\" data-end=\"806\"\u003e\u003cstrong data-start=\"680\" data-end=\"716\"\u003eCheck Thermostat \u0026amp; Power Supply:\u003c\/strong\u003e Verify thermostat settings, gas supply, and \u003cstrong data-start=\"761\" data-end=\"777\"\u003e115V circuit\u003c\/strong\u003e are functioning correctly.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1f4oqus\" data-start=\"807\" data-end=\"978\"\u003e\n\u003cp data-start=\"809\" data-end=\"978\"\u003e\u003cstrong data-start=\"809\" data-end=\"850\"\u003eSchedule Annual Professional Service:\u003c\/strong\u003e A licensed HVAC technician should inspect burners, heat exchanger, gas pressure, ignition system, and safety controls yearly.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":46812777775241,"sku":"GD9S801005CN","price":1635.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0759\/2443\/9177\/files\/80_downflow_frontleft-800x800_1_dc0e03b5-8e5c-4ed2-ad76-cbcc52d4d374.webp?v=1779806476","url":"https:\/\/mobility-ready.com\/products\/goodman-100-000-btu-80-gas-furnace-21-width-downflow-horizontal-single-stage-115v-r32","provider":"Supplies for Happy Tails","version":"1.0","type":"link"}