{"product_id":"oem-lennox-heat-exchanger-assembly-small-5t-with-vest-panel-12k44","title":"OEM Lennox Heat Exchanger Assembly Small 5T With Vest Panel — 12K44","description":"\u003cp\u003eThe \u003cstrong\u003eLennox 12K44\u003c\/strong\u003e is a genuine OEM small 5-ton heat exchanger assembly complete with vest panel, engineered specifically for compatible Lennox furnace models. This critical component is responsible for transferring heat from combustion gases to the air supply without cross-contamination, keeping your home safe and warm. Signs of a failing heat exchanger include cracks, soot buildup, strange smells, or inefficient heating — replacing it with this OEM part guarantees an exact fit and reliable Lennox performance.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081063678323,"sku":"LNX-12K44","price":399.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-heat-exchanger-assembly-small-5t-with-vest-panel-12k44","provider":"National HVAC Parts","version":"1.0","type":"link"}