{"product_id":"ace-air-40-000-btu-80-afue-ecm-gas-furnace-upflow-horizontal-r-32-gr9s800403ana-1","title":"Ace Air 40,000 BTU 80% AFUE Gas Furnace - Upflow\/Horizontal - R-32 | AAD-GR9S800403ANA","description":"\u003cstyle\u003e.gm-product{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;color:#1a1a2e;line-height:1.6;max-width:100%;overflow-wrap:break-word}.gm-product *{box-sizing:border-box}.gm-product h2,.gm-product h3{margin-top:0}.gm-product p{margin:0 0 12px}.gm-product a{color:#cc0000;text-decoration:none}.gm-product a:hover{text-decoration:underline}.gm-badges{display:flex;flex-wrap:wrap;gap:12px;margin:24px 0 32px}.gm-badge{display:inline-flex;align-items:center;gap:8px;background:#f0f4f8;border:1px solid #d1dce6;border-radius:8px;padding:8px 16px;font-size:13px;font-weight:600;color:#2d3748}.gm-badge 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*{stroke:white!important}.gm-feature\u003ediv:not(.gm-feature-icon){grid-column:2;min-width:0}.gm-feature h4{font-size:15px;font-weight:700;color:#1a1a2e;margin:0 0 6px;grid-column:2;word-break:normal;overflow-wrap:anywhere}.gm-feature p{font-size:13px;color:#64748b;margin:0;line-height:1.5;grid-column:2;word-break:normal;overflow-wrap:anywhere}.gm-product table{width:100%;border-collapse:collapse;margin:16px 0;table-layout:auto}.gm-product table th{padding:12px 16px;background:#f1f5f9;font-weight:700;font-size:13px;color:#374151;text-align:left;border:1px solid #e5e7eb}.gm-product table td{padding:12px 16px;font-size:14px;border:1px solid #e5e7eb;color:#1a1a2e}.gm-product table tr:nth-child(even){background:#f8fafc}.gm-faq{margin:24px 0}.gm-faq-item{border:1px solid #e2e8f0;border-radius:10px;padding:18px 20px;margin-bottom:12px;background:#ffffff}.gm-faq-q{font-size:15px;font-weight:700;color:#1a1a2e;margin:0 0 8px}.gm-faq-a{font-size:14px;color:#475569;margin:0;line-height:1.6}.gm-warranty-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-top:16px}.gm-warranty-item{text-align:center;background:#f0f4f8;border:1px solid #d1dce6;border-radius:10px;padding:20px 16px}.gm-warranty-years{font-size:28px;font-weight:800;color:#cc0000}.gm-warranty-label{font-size:13px;color:#64748b;margin-top:4px}.gm-callout{background:#eff6ff;border:1px solid #c7d2fe;border-radius:12px;padding:20px 24px;margin:24px 0;display:flex;align-items:flex-start;gap:12px;font-size:14px;color:#3730a3;word-break:normal;overflow-wrap:anywhere}.gm-callout svg{flex-shrink:0;margin-top:2px}.gm-callout\u003ediv{flex:1;min-width:0}@media(max-width:768px){.gm-perf-cards{grid-template-columns:repeat(2,1fr)}.gm-features{grid-template-columns:1fr}.gm-warranty-grid{grid-template-columns:1fr}.gm-section{margin:32px 0}.gm-section h2,.gm-section-title{font-size:20px}}@media(max-width:480px){.gm-perf-cards{grid-template-columns:1fr}.gm-perf-card-num{font-size:28px}.gm-badge{font-size:12px;padding:6px 12px}}\u003c\/style\u003e\n\u003cdiv class=\"gm-product\"\u003e\n\u003cdiv class=\"gm-badges\"\u003e\n\u003cspan class=\"gm-badge gm-badge--accent\"\u003e\u003csvg width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003cpath d=\"M22 11.08V12a10 10 0 11-5.93-9.14\"\u003e\u003c\/path\u003e\u003cpolyline points=\"22 4 12 14.01 9 11.01\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e80% AFUE\u003c\/span\u003e\n\u003cspan class=\"gm-badge gm-badge--system\"\u003e\u003csvg width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003crect x=\"3\" y=\"3\" width=\"18\" height=\"18\" rx=\"2\"\u003e\u003c\/rect\u003e\u003cline x1=\"3\" y1=\"9\" x2=\"21\" y2=\"9\"\u003e\u003c\/line\u003e\u003c\/svg\u003e14\" Wide Cabinet\u003c\/span\u003e\n\u003cspan class=\"gm-badge gm-badge--blue\"\u003e\u003csvg width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003cpolyline points=\"6 9 12 15 18 9\"\u003e\u003c\/polyline\u003e\u003cpolyline points=\"6 15 12 9 18 15\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003eUpflow \/ Horizontal\u003c\/span\u003e\n\u003cspan class=\"gm-badge gm-badge--warn\"\u003e\u003csvg width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003cpath d=\"M12 2C12 2 5 9 5 14a7 7 0 0014 0c0-5-7-12-7-12z\"\u003e\u003c\/path\u003e\u003c\/svg\u003eNatural Gas\u003c\/span\u003e\n\u003cspan class=\"gm-badge\"\u003e\u003csvg width=\"18\" height=\"18\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003ccircle cx=\"12\" cy=\"12\" r=\"10\"\u003e\u003c\/circle\u003e\u003cpath d=\"M12 6v6l4 2\"\u003e\u003c\/path\u003e\u003c\/svg\u003eR-32 Coil Compatible\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"gm-callout\"\u003e\n\u003csvg width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003ccircle cx=\"12\" cy=\"12\" r=\"10\"\u003e\u003c\/circle\u003e\u003cline x1=\"12\" y1=\"16\" x2=\"12\" y2=\"12\"\u003e\u003c\/line\u003e\u003cline x1=\"12\" y1=\"8\" x2=\"12.01\" y2=\"8\"\u003e\u003c\/line\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eA note on \"R-32\" in the title:\u003c\/strong\u003e This is a gas furnace and does not contain refrigerant. The \"R-32\" designation means this furnace is engineered to serve as the indoor air-mover beneath an R-32 coil, with airflow and safety features that meet current A2L refrigerant system standards.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"gm-section\"\u003e\n\u003ch2 class=\"gm-section-title\"\u003ePerformance at a Glance\u003c\/h2\u003e\n\u003cdiv class=\"gm-perf-cards\"\u003e\n\u003cdiv class=\"gm-perf-card\"\u003e\n\u003cdiv class=\"gm-perf-card-num\"\u003e40,000\u003c\/div\u003e\n\u003cdiv class=\"gm-perf-card-unit\"\u003eBTU\/h\u003c\/div\u003e\n\u003cdiv class=\"gm-perf-card-label\"\u003eHeating Input\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gm-perf-card\"\u003e\n\u003cdiv class=\"gm-perf-card-num\"\u003e32,000\u003c\/div\u003e\n\u003cdiv class=\"gm-perf-card-unit\"\u003eBTU\/h\u003c\/div\u003e\n\u003cdiv class=\"gm-perf-card-label\"\u003eHeating Output\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gm-perf-card\"\u003e\n\u003cdiv class=\"gm-perf-card-num\"\u003e80\u003cspan class=\"gm-perf-card-unit\" style=\"font-size:20px;vertical-align:baseline\"\u003e%\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gm-perf-card-unit\"\u003eAFUE\u003c\/div\u003e\n\u003cdiv class=\"gm-perf-card-label\"\u003eHeating Efficiency\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gm-perf-card\"\u003e\n\u003cdiv class=\"gm-perf-card-num\"\u003e1\/2\u003c\/div\u003e\n\u003cdiv class=\"gm-perf-card-unit\"\u003eHP\u003c\/div\u003e\n\u003cdiv class=\"gm-perf-card-label\"\u003eBlower Motor\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gm-perf-card\"\u003e\n\u003cdiv class=\"gm-perf-card-num\" style=\"font-size:26px;\"\u003e14\"\u003c\/div\u003e\n\u003cdiv class=\"gm-perf-card-unit\"\u003eWide\u003c\/div\u003e\n\u003cdiv class=\"gm-perf-card-label\"\u003eCabinet Size\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"gm-section\"\u003e\n\u003ch2 class=\"gm-section-title\"\u003eKey Features\u003c\/h2\u003e\n\u003cp class=\"gm-section-sub\"\u003eWhy this furnace works\u003c\/p\u003e\n\u003cdiv class=\"gm-features\"\u003e\n\u003cdiv class=\"gm-feature\"\u003e\n\u003cdiv class=\"gm-feature-icon\"\u003e\u003csvg width=\"22\" height=\"22\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"white\" stroke-width=\"2\"\u003e\u003cpath d=\"M22 11.08V12a10 10 0 11-5.93-9.14\"\u003e\u003c\/path\u003e\u003cpolyline points=\"22 4 12 14.01 9 11.01\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003ch4\u003e80% AFUE Heating Efficiency\u003c\/h4\u003e\n\u003cp\u003e80% of the natural gas you burn becomes usable heat. 80% AFUE meets federal minimum efficiency for residential gas furnaces — the baseline for reliable, cost-effective home heating.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gm-feature\"\u003e\n\u003cdiv class=\"gm-feature-icon\"\u003e\u003csvg width=\"22\" height=\"22\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"white\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003cpath d=\"M12 2C12 2 5 9 5 14a7 7 0 0014 0c0-5-7-12-7-12z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003ch4\u003eAluminized Steel Heat Exchanger\u003c\/h4\u003e\n\u003cp\u003eThe heat exchanger is where combustion heat transfers to your airflow — it's also the single biggest factor in furnace longevity. Aluminized steel resists corrosion and thermal fatigue over long service life. Built to outlast the rest.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gm-feature\"\u003e\n\u003cdiv class=\"gm-feature-icon\"\u003e\u003csvg width=\"22\" height=\"22\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"white\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003ccircle cx=\"12\" cy=\"12\" r=\"3\"\u003e\u003c\/circle\u003e\u003cpath d=\"M12 2v4M12 18v4M4.93 4.93l2.83 2.83M16.24 16.24l2.83 2.83M2 12h4M18 12h4M4.93 19.07l2.83-2.83M16.24 7.76l2.83-2.83\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003ch4\u003e1\/2 HP Multi-Speed ECM Blower\u003c\/h4\u003e\n\u003cp\u003eA 1\/2 HP multi-speed ECM blower pushes conditioned air through your ductwork in both heating and cooling modes. Your contractor dials in the right blower speed for your home's airflow at install time.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gm-feature\"\u003e\n\u003cdiv class=\"gm-feature-icon\"\u003e\u003csvg width=\"22\" height=\"22\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"white\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003cpolyline points=\"6 9 12 15 18 9\"\u003e\u003c\/polyline\u003e\u003cpolyline points=\"6 15 12 9 18 15\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003ch4\u003eUpflow or Horizontal Installation\u003c\/h4\u003e\n\u003cp\u003eInstall upflow (cool air enters bottom, warm air exits top) or horizontal (air moves sideways). Fits utility rooms, closets, or attics depending on your ductwork layout. Flexible.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gm-feature\"\u003e\n\u003cdiv class=\"gm-feature-icon\"\u003e\u003csvg width=\"22\" height=\"22\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"white\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003cpolygon points=\"13 2 3 14 12 14 11 22 21 10 12 10 13 2\"\u003e\u003c\/polygon\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003ch4\u003eElectronic Ignition\u003c\/h4\u003e\n\u003cp\u003eNo standing pilot light. No gas waste during idle periods. Reliable lightoff every cycle, and no manual relighting after power outages or vacation shutoffs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gm-feature\"\u003e\n\u003cdiv class=\"gm-feature-icon\"\u003e\u003csvg width=\"22\" height=\"22\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"white\" stroke-width=\"2\"\u003e\u003cpolygon points=\"12 2 15.09 8.26 22 9.27 17 14.14 18.18 21.02 12 17.77 5.82 21.02 7 14.14 2 9.27 8.91 8.26 12 2\"\u003e\u003c\/polygon\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003ch4\u003eBacked by Ace Air\u003c\/h4\u003e\n\u003cp\u003e10-Year Parts Limited Warranty and Lifetime Heat Exchanger Limited Warranty when registered within 60 days of installation by a licensed HVAC pro. Simple, documented, backed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gm-features-detail\" style=\"margin-top:32px;\"\u003e\n\u003cp\u003eThe GR9S80 single-stage gas furnace produces 40,000 BTU of heating output at 80% AFUE efficiency. The aluminized-steel dual-diameter tubular heat exchanger and hot-surface igniter provide reliable ignition, and the multi-speed ECM blower motor delivers quiet, efficient air circulation in upflow, downflow, or horizontal installations. AHRI Certified and ETL Listed; backed by a 99-year heat exchanger limited warranty with product registration.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-duty aluminized-steel heat exchanger\u003c\/strong\u003e — dual-diameter tubular design rated for long service life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle-stage gas valve\u003c\/strong\u003e — reliable on\/off heating control with a durable hot-surface igniter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-speed ECM blower motor\u003c\/strong\u003e — energy-efficient circulation with multiple airflow taps for system matching.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuiet, single-speed draft inducer\u003c\/strong\u003e — consistent venting performance with reduced operating noise.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-diagnostic control board\u003c\/strong\u003e — stores fault history for easier troubleshooting during service.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor-coded low-voltage terminals\u003c\/strong\u003e — simplifies thermostat wiring during installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-position installation\u003c\/strong\u003e — supports upflow and horizontal configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProvisions for accessories\u003c\/strong\u003e — compatible with electronic air cleaners and humidifiers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e99-year heat exchanger limited warranty\u003c\/strong\u003e — with product registration within 60 days of installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"gm-section\"\u003e\n\u003ch2 class=\"gm-section-title\"\u003eComplete Specifications\u003c\/h2\u003e\n\u003cp class=\"gm-section-sub\"\u003eAAD-GR9S800403ANA — 40,000 BTU 80% AFUE Gas Furnace\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\u003cth colspan=\"2\"\u003eModel \u0026amp; Configuration\u003c\/th\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eGR9S800403ANA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeating Input\u003c\/td\u003e\n\u003ctd\u003e40,000 BTU\/h\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeating Output\u003c\/td\u003e\n\u003ctd\u003e32,000 BTU\/h\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAFUE Rating\u003c\/td\u003e\n\u003ctd\u003e80%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCabinet Size\u003c\/td\u003e\n\u003ctd\u003eA (14\" wide)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation Orientation\u003c\/td\u003e\n\u003ctd\u003eUpflow \/ Horizontal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuel Type\u003c\/td\u003e\n\u003ctd\u003eNatural Gas\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eR-32 Coil Compatible\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003cthead\u003e\u003ctr\u003e\u003cth colspan=\"2\"\u003eBlower\u003c\/th\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBlower Motor HP\u003c\/td\u003e\n\u003ctd\u003e1\/2 HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBlower Type\u003c\/td\u003e\n\u003ctd\u003eMulti-Speed ECM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003cthead\u003e\u003ctr\u003e\u003cth colspan=\"2\"\u003eElectrical\u003c\/th\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum Circuit Ampacity (MCA)\u003c\/td\u003e\n\u003ctd\u003e7.7 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Overcurrent Protection (MOCP)\u003c\/td\u003e\n\u003ctd\u003e15 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003cthead\u003e\u003ctr\u003e\u003cth colspan=\"2\"\u003ePhysical\u003c\/th\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Weight\u003c\/td\u003e\n\u003ctd\u003e86 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"gm-section\"\u003e\n\u003ch2 class=\"gm-section-title\"\u003eWarranty Coverage\u003c\/h2\u003e\n\u003cp class=\"gm-section-sub\"\u003eCoverage that kicks in at registration\u003c\/p\u003e\n\u003cdiv class=\"gm-warranty-grid\"\u003e\n\u003cdiv class=\"gm-warranty-item\"\u003e\n\u003cdiv class=\"gm-warranty-years\"\u003e10 Year\u003c\/div\u003e\n\u003cdiv class=\"gm-warranty-label\"\u003eParts Limited Warranty\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gm-warranty-item\"\u003e\n\u003cdiv class=\"gm-warranty-years\"\u003eLifetime\u003c\/div\u003e\n\u003cdiv class=\"gm-warranty-label\"\u003eHeat Exchanger Limited Warranty\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin-top:16px;font-size:.9em;color:#6b7280;\"\u003eRegister within 60 days of installation. See official Ace Air warranty documents for complete terms and conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"gm-section gm-spec-sheets\"\u003e\n\u003cstyle\u003e\n.gm-spec-sheets-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:12px;margin-top:16px}\n.gm-spec-link{display:flex;align-items:center;gap:12px;padding:14px 18px;background:#f8fafc;border:1px solid #d1dce6;border-radius:10px;text-decoration:none;color:#1a1a2e;transition:background 0.15s,border-color 0.15s}\n.gm-spec-link:hover{background:#eef2f7;border-color:#94a3b8;text-decoration:none}\n.gm-spec-link svg{flex-shrink:0;color:#cc0000}\n.gm-spec-link strong{font-size:14px;font-weight:700;color:#1a1a2e}\n\u003c\/style\u003e\n\u003ch2 class=\"gm-section-title\"\u003eDocumentation\u003c\/h2\u003e\n\u003cp class=\"gm-section-sub\"\u003eManufacturer spec sheets for this product\u003c\/p\u003e\n\u003cdiv class=\"gm-spec-sheets-grid\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0708\/6279\/8913\/files\/GR9S80.pdf?v=1777321861\" target=\"_blank\" rel=\"noopener\" class=\"gm-spec-link\"\u003e\u003csvg width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003cpath d=\"M14 2H6a2 2 0 00-2 2v16a2 2 0 002 2h12a2 2 0 002-2V8z\"\u003e\u003c\/path\u003e\u003cpolyline points=\"14 2 14 8 20 8\"\u003e\u003c\/polyline\u003e\u003cline x1=\"12\" y1=\"18\" x2=\"12\" y2=\"12\"\u003e\u003c\/line\u003e\u003cpolyline points=\"9 15 12 12 15 15\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003cspan\u003e\u003cstrong\u003eFurnace Spec Sheet\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"font-size:12px;opacity:0.85\"\u003ePDF — Tap to download\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"gm-section gm-faq\"\u003e\n\u003ch2 class=\"gm-section-title\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"gm-faq-item\"\u003e\n\u003cdiv class=\"gm-faq-q\"\u003eWhat does AFUE mean?\u003c\/div\u003e\n\u003cdiv class=\"gm-faq-a\"\u003eAFUE (Annual Fuel Utilization Efficiency) measures how much of the gas your furnace burns actually becomes usable heat. An 80% AFUE rating means 80 cents of every fuel dollar heats your home — the rest exits through the flue. 80% AFUE is the federal baseline for residential gas furnaces.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gm-faq-item\"\u003e\n\u003cdiv class=\"gm-faq-q\"\u003eIs 80% AFUE efficient enough?\u003c\/div\u003e\n\u003cdiv class=\"gm-faq-a\"\u003eFor mild-to-moderate winters, yes — 80% is the standard baseline. In colder climates or if heating bills matter a lot, 90–97% AFUE furnaces cost more upfront but burn less fuel over time. The right choice comes down to your climate, fuel prices, install cost, and how long you'll own the home.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gm-faq-item\"\u003e\n\u003cdiv class=\"gm-faq-q\"\u003eWhat size home does a 40,000 BTU furnace heat?\u003c\/div\u003e\n\u003cdiv class=\"gm-faq-a\"\u003eA 40,000 BTU\/h input furnace (about 32,000 BTU\/h output at 80% AFUE) typically handles homes in the 800–1,400 sq. ft. range. Climate zone, insulation, windows, and home orientation all change the math — a professional Manual J load calculation is the most accurate way to size for your home.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gm-faq-item\"\u003e\n\u003cdiv class=\"gm-faq-q\"\u003eWhat does \"Upflow \/ Horizontal\" mean?\u003c\/div\u003e\n\u003cdiv class=\"gm-faq-a\"\u003eTwo install positions. \u003cem\u003eUpflow\u003c\/em\u003e — furnace stands vertical, cool return air enters the bottom, warm supply air exits the top. Typical in basements and utility rooms. \u003cem\u003eHorizontal\u003c\/em\u003e — furnace lays on its side, air moves sideways. Common in attics and crawlspaces. Your contractor picks the orientation for your ductwork and install space.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gm-faq-item\"\u003e\n\u003cdiv class=\"gm-faq-q\"\u003eWhy does this gas furnace mention \"R-32\"?\u003c\/div\u003e\n\u003cdiv class=\"gm-faq-a\"\u003eThis is a gas furnace — no refrigerant inside. The \"R-32\" label means the furnace is engineered to sit beneath an R-32 AC coil or heat pump coil, with the airflow and A2L safety compliance today's R-32 systems require. If you're replacing an older furnace paired with an R-410A coil, upgrading just one side of the system may push you to upgrade the other.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gm-faq-item\"\u003e\n\u003cdiv class=\"gm-faq-q\"\u003eHow do I know if this cabinet size fits my home?\u003c\/div\u003e\n\u003cdiv class=\"gm-faq-a\"\u003eCabinet widths: A = 14\", B = 17-1\/2\", C = 21\", D = 24-1\/2\". The AAD-GR9S800403ANA is a Cabinet A (14\" wide). The coil or air handler on top needs to match — a mismatch means transition pieces or a new coil. Replacing an existing furnace? Matching the cabinet letter is usually the simplest path.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gm-faq-item\"\u003e\n\u003cdiv class=\"gm-faq-q\"\u003eCan this furnace run on LP \/ propane?\u003c\/div\u003e\n\u003cdiv class=\"gm-faq-a\"\u003eThis specific model is configured for Natural Gas. Some gas furnaces can be field-converted to LP with a conversion kit — it depends on the model and burner configuration. Check the installation manual or ask your HVAC contractor before attempting any fuel conversion. Not a DIY job. Improper conversion can be dangerous.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gm-faq-item\"\u003e\n\u003cdiv class=\"gm-faq-q\"\u003eWhat maintenance does a gas furnace need?\u003c\/div\u003e\n\u003cdiv class=\"gm-faq-a\"\u003eChange the air filter every 1–3 months during heating season. Get a licensed tech out annually before winter for burner cleaning, heat exchanger crack check, combustion venting verification, and ignition system test. Regular maintenance keeps it efficient, extends service life, and catches safety issues early — especially carbon monoxide risks.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gm-faq-item\"\u003e\n\u003cdiv class=\"gm-faq-q\"\u003eHow do I register for the warranty?\u003c\/div\u003e\n\u003cdiv class=\"gm-faq-a\"\u003eRegister at Ace Air's warranty page within 60 days of installation. You need: model number (AAD-GR9S800403ANA), serial number (from the data plate), install date, and installing contractor info. Miss the 60-day window and you drop to the shorter base warranty.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Ace Air","offers":[{"title":"Default Title","offer_id":43799827021889,"sku":"AAD-GR9S800403ANA","price":1074.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0708\/6279\/8913\/files\/ace-air-gas-furnace.jpg?v=1776772186","url":"https:\/\/aceairdirect.com\/products\/ace-air-40-000-btu-80-afue-ecm-gas-furnace-upflow-horizontal-r-32-gr9s800403ana-1","provider":"Ace Air Direct","version":"1.0","type":"link"}