{"product_id":"oem-goodman-heat-exchanger-for-gmnt120-5-2921306s","title":"OEM Goodman Heat Exchanger for GMNT120-5 — 2921306S","description":"\u003cp\u003eThe Goodman \u003cstrong\u003e2921306S\u003c\/strong\u003e is a genuine OEM \u003cstrong\u003eclamshell heat exchanger\u003c\/strong\u003e for the \u003cstrong\u003eGMNT120-5\u003c\/strong\u003e gas furnace. The heat exchanger transfers combustion heat to the supply air while keeping flue gases separated from the home's airstream. A cracked, rusted, or perforated exchanger is a serious safety issue that can leak carbon monoxide — this factory replacement restores safe, efficient operation.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Aluminized-steel clamshell heat exchanger assembly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e 115,000–120,000 BTU furnace section\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Aluminized steel for corrosion and thermal-fatigue resistance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Exchanger cells as originally supplied\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Goodman GMNT120-5 and compatible GMNT series\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eOEM vs. Generic:\u003c\/strong\u003e The heat exchanger is the single most safety-critical component in a furnace. Only a genuine Goodman OEM exchanger guarantees the exact cell geometry, weld integrity, and clearances the furnace was certified with. Aftermarket exchangers are strongly discouraged for this component.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstall difficulty:\u003c\/strong\u003e Professional \/ Hard (5 of 5). Replacement requires near-complete furnace disassembly — removing the burners, gas valve, blower, and inducer — plus post-install combustion and CO testing. This job should be performed by a licensed HVAC technician. Always confirm the exchanger is not still under Goodman's limited warranty before purchasing.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058131452275,"sku":"GOODMAN-11742","price":574.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-heat-exchanger-for-gmnt120-5-2921306s","provider":"National HVAC Parts","version":"1.0","type":"link"}