{"product_id":"oem-lennox-heat-exchanger-46k95","title":"OEM Lennox Heat Exchanger — 46K95","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e46K95\u003c\/strong\u003e heat exchanger is the heart of your Lennox furnace's heating cycle. It transfers heat from the combustion gases to the circulating air stream while keeping those flue gases completely separated from the air you breathe. Engineered to precise Lennox dimensions and metallurgy, the \u003cstrong\u003e46K95\u003c\/strong\u003e restores rated heating output, efficiency, and — most importantly — safe operation.\u003c\/p\u003e\u003cp\u003eA compromised heat exchanger is a serious safety concern. Warning signs include visible cracks or corrosion, rust flakes or soot inside the cabinet, a flickering or rolling burner flame when the blower runs, unusual odors, water pooling near the furnace, and elevated carbon monoxide readings. Any of these indicates the exchanger may be leaking combustion byproducts and should be addressed immediately by a qualified technician.\u003c\/p\u003e\u003cp\u003eOEM is non-negotiable for a component this critical. Lennox heat exchangers are fabricated from specific alloys and welded to tolerances that withstand repeated thermal cycling without premature cracking — quality that off-brand replacements rarely match. Installing the Lennox \u003cstrong\u003e46K95\u003c\/strong\u003e ensures a correct fit, proper combustion clearances, safe venting, and continued warranty protection. In stock and ready to ship same day before 3PM CST.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081105457523,"sku":"LNX-46K95","price":399.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-heat-exchanger-LNX-46K95.jpg?v=1783761906","url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-heat-exchanger-46k95","provider":"National HVAC Parts","version":"1.0","type":"link"}