{"product_id":"goodman-80-000-btu-80-gas-furnace-17-5-width-downflow-horizontal-single-stage-115v-r32","title":"Goodman - 80,000 BTU 80% Gas Furnace - 17.5\" Width - Downflow \/ Horizontal - Single Stage - 115V - R32 - GD9S800804BN","description":"\u003ch2\u003e\u003cspan\u003eGoodman - 80,000 BTU 80% Gas Furnace - 17.5\" Width - Downflow \/ Horizontal - Single Stage - 115V - R32 - GD9S800804BN\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe GD9S800804BN Goodman gas furnace features high-quality construction and efficient operation at a great value. The GD9S800804BN 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 GD9S800804BN.\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 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-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% 80,000 BTU Single Stage Gas Furnace - 17.5\" Width - Downflow \/ 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\"\u003eGD9S800804BN\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\"\u003e107.000000\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\"\u003e215358040\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\"\u003eDownflow\/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\"\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\"\u003eDownflow\/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\"\u003e17 1\/2\"\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\/GR9S80_GD9S80-Install-Manual.pdf?v=1759910039\" 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\/GR9S80_Product_Specs.pdf?v=1759910035\" 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\u003e\n\u003cli data-section-id=\"1458adm\" data-start=\"27\" data-end=\"182\"\u003e\n\u003cp data-start=\"29\" data-end=\"182\"\u003e\u003cstrong data-start=\"29\" data-end=\"60\"\u003e80,000 BTU Heating Capacity\u003c\/strong\u003e – Matches well with \u003cstrong data-start=\"81\" data-end=\"103\"\u003emedium‑sized homes\u003c\/strong\u003e, providing steady warmth through colder months without oversized energy waste.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"9p6g3k\" data-start=\"184\" data-end=\"343\"\u003e\n\u003cp data-start=\"186\" data-end=\"343\"\u003e\u003cstrong data-start=\"186\" data-end=\"218\"\u003e80% AFUE Standard Efficiency\u003c\/strong\u003e – Offers \u003cstrong data-start=\"228\" data-end=\"282\"\u003esolid fuel efficiency at an affordable price point\u003c\/strong\u003e, making it a practical choice for budget‑conscious upgrades.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"6vde3f\" data-start=\"345\" data-end=\"485\"\u003e\n\u003cp data-start=\"347\" data-end=\"485\"\u003e\u003cstrong data-start=\"347\" data-end=\"373\"\u003eSingle‑Stage Operation\u003c\/strong\u003e – Simple on\/off heating delivers \u003cstrong data-start=\"407\" data-end=\"448\"\u003ereliable, easy‑to‑service performance\u003c\/strong\u003e suited for everyday residential use.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1ejmvvw\" data-start=\"487\" data-end=\"636\"\u003e\n\u003cp data-start=\"489\" data-end=\"636\"\u003e\u003cstrong data-start=\"489\" data-end=\"526\"\u003eDownflow \/ Horizontal Flexibility\u003c\/strong\u003e – Supports \u003cstrong data-start=\"538\" data-end=\"579\"\u003edownflow and horizontal installations\u003c\/strong\u003e, ideal for basements, attics, or compact utility spaces.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1d3rfse\" data-start=\"638\" data-end=\"770\"\u003e\n\u003cp data-start=\"640\" data-end=\"770\"\u003e\u003cstrong data-start=\"640\" data-end=\"663\"\u003e17.5″ Width Cabinet\u003c\/strong\u003e – Slim design fits \u003cstrong data-start=\"683\" data-end=\"702\"\u003etight locations\u003c\/strong\u003e and simplifies installation in closets or cramped mechanical rooms.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"jib7e9\" data-start=\"772\" data-end=\"886\"\u003e\n\u003cp data-start=\"774\" data-end=\"886\"\u003e\u003cstrong data-start=\"774\" data-end=\"803\"\u003e115 V Power Compatibility\u003c\/strong\u003e – Works with \u003cstrong data-start=\"817\" data-end=\"858\"\u003estandard household electrical service\u003c\/strong\u003e, reducing setup complexity.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1jnd02e\" data-start=\"888\" data-end=\"1018\"\u003e\n\u003cp data-start=\"890\" data-end=\"1018\"\u003e\u003cstrong data-start=\"890\" data-end=\"911\"\u003eR‑32 System Ready\u003c\/strong\u003e – Designed to integrate with \u003cstrong data-start=\"941\" data-end=\"980\"\u003emodern R‑32 refrigerant HVAC setups\u003c\/strong\u003e, ensuring future‑ready compatibility.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"343u2s\" data-start=\"1020\" data-end=\"1143\"\u003e\n\u003cp data-start=\"1022\" data-end=\"1143\"\u003e\u003cstrong data-start=\"1022\" data-end=\"1045\"\u003eGoodman Reliability\u003c\/strong\u003e – Backed by a \u003cstrong data-start=\"1060\" data-end=\"1088\"\u003etrusted brand reputation\u003c\/strong\u003e with durable components and accessible serviceability.\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=\"134\" data-end=\"389\"\u003e\u003cstrong data-start=\"134\" data-end=\"180\"\u003eQ: What size space does this furnace heat?\u003c\/strong\u003e\u003cbr data-start=\"180\" data-end=\"183\"\u003eA: This \u003cstrong data-start=\"191\" data-end=\"214\"\u003e80,000 BTU 80% AFUE\u003c\/strong\u003e furnace delivers about \u003cstrong data-start=\"238\" data-end=\"267\"\u003e64,000 BTU of usable heat\u003c\/strong\u003e — ideal for \u003cstrong data-start=\"280\" data-end=\"302\"\u003emedium‑sized homes\u003c\/strong\u003e when properly sized with insulation and climate. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"391\" data-end=\"639\"\u003e\u003cstrong data-start=\"391\" data-end=\"422\"\u003eQ: What does 80% AFUE mean?\u003c\/strong\u003e\u003cbr data-start=\"422\" data-end=\"425\"\u003eA: \u003cstrong data-start=\"428\" data-end=\"440\"\u003e80% AFUE\u003c\/strong\u003e means \u003cstrong data-start=\"447\" data-end=\"485\"\u003e80% of fuel is converted into heat\u003c\/strong\u003e for your home, while the rest is lost through the metal flue — a common efficiency level for standard gas furnaces. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"641\" data-end=\"856\"\u003e\u003cstrong data-start=\"641\" data-end=\"691\"\u003eQ: What type of heating operation does it use?\u003c\/strong\u003e\u003cbr data-start=\"691\" data-end=\"694\"\u003eA: It uses a \u003cstrong data-start=\"707\" data-end=\"733\"\u003esingle‑stage gas valve\u003c\/strong\u003e, providing dependable, straightforward heat output when the thermostat calls for it. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"858\" data-end=\"1093\"\u003e\u003cstrong data-start=\"858\" data-end=\"907\"\u003eQ: How does the blower motor improve comfort?\u003c\/strong\u003e\u003cbr data-start=\"907\" data-end=\"910\"\u003eA: The \u003cstrong data-start=\"917\" data-end=\"949\"\u003emulti‑speed ECM blower motor\u003c\/strong\u003e offers \u003cstrong data-start=\"957\" data-end=\"1026\"\u003equieter airflow with better energy efficiency and comfort control\u003c\/strong\u003e than traditional PSC motors. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1095\" data-end=\"1331\"\u003e\u003cstrong data-start=\"1095\" data-end=\"1147\"\u003eQ: What installation orientations are supported?\u003c\/strong\u003e\u003cbr data-start=\"1147\" data-end=\"1150\"\u003eA: Designed for both \u003cstrong data-start=\"1171\" data-end=\"1225\"\u003edownflow and horizontal (left\/right) installations\u003c\/strong\u003e, offering flexibility for attics, crawl spaces, or utility closets. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1333\" data-end=\"1558\"\u003e\u003cstrong data-start=\"1333\" data-end=\"1383\"\u003eQ: What are the physical and electrical specs?\u003c\/strong\u003e\u003cbr data-start=\"1383\" data-end=\"1386\"\u003eA: Cabinet size: \u003cstrong data-start=\"1403\" data-end=\"1431\"\u003e17.5″ W × 28″ D × 33⅜″ H\u003c\/strong\u003e; operates on \u003cstrong data-start=\"1445\" data-end=\"1473\"\u003e115 V single‑phase power\u003c\/strong\u003e with typical breaker sizes around 11.3 – 15 A.\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=\"1wt20bn\" data-start=\"121\" data-end=\"228\"\u003e\n\u003cp data-start=\"123\" data-end=\"228\"\u003e\u003cstrong data-start=\"123\" data-end=\"164\"\u003eReplace Air Filters Every 1–3 Months:\u003c\/strong\u003e Maintains airflow, efficiency, and protects the blower motor.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1o3njn8\" data-start=\"229\" data-end=\"336\"\u003e\n\u003cp data-start=\"231\" data-end=\"336\"\u003e\u003cstrong data-start=\"231\" data-end=\"264\"\u003eKeep Vents \u0026amp; Registers Clear:\u003c\/strong\u003e Avoid obstructions to ensure balanced airflow and consistent heating.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"in060b\" data-start=\"337\" data-end=\"471\"\u003e\n\u003cp data-start=\"339\" data-end=\"471\"\u003e\u003cstrong data-start=\"339\" data-end=\"374\"\u003eAnnual Professional Inspection:\u003c\/strong\u003e Have a technician check burners, heat exchanger, gas pressure, and airflow for safe operation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"w9d51c\" data-start=\"472\" data-end=\"603\"\u003e\n\u003cp data-start=\"474\" data-end=\"603\"\u003e\u003cstrong data-start=\"474\" data-end=\"501\"\u003eInspect Venting System:\u003c\/strong\u003e Check flue pipes and exhaust vents for blockages or corrosion to ensure proper combustion gas flow.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"68kvu3\" data-start=\"604\" data-end=\"707\"\u003e\n\u003cp data-start=\"606\" data-end=\"707\"\u003e\u003cstrong data-start=\"606\" data-end=\"636\"\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=\"77ilni\" data-start=\"708\" data-end=\"809\"\u003e\n\u003cp data-start=\"710\" data-end=\"809\"\u003e\u003cstrong data-start=\"710\" data-end=\"744\"\u003eVerify Thermostat Performance:\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=\"810\" data-end=\"937\"\u003e\n\u003cp data-start=\"812\" data-end=\"937\"\u003e\u003cstrong data-start=\"812\" data-end=\"842\"\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":46812777742473,"sku":"GD9S800804BN","price":1460.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0759\/2443\/9177\/files\/80_downflow_frontleft-800x800_1_3869df96-a4c6-4a0d-9ab3-cbbddb48ef05.webp?v=1779806474","url":"https:\/\/mobility-ready.com\/products\/goodman-80-000-btu-80-gas-furnace-17-5-width-downflow-horizontal-single-stage-115v-r32","provider":"Supplies for Happy Tails","version":"1.0","type":"link"}