{"product_id":"oem-lennox-heat-exchanger-assembly-93w29","title":"OEM Lennox Heat Exchanger Assembly — 93W29","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e93W29\u003c\/strong\u003e heat exchanger assembly (also referenced as R42510006) is the primary heat-transfer component in your Lennox gas furnace. As combustion gases pass through its channels, heat is transferred to the blower air stream while flue byproducts stay fully contained — delivering warm, safe air throughout your home. Manufactured to Lennox factory tolerances for a precise, reliable fit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms:\u003c\/strong\u003e Watch for cracked or corroded exchanger surfaces, a wavering or lifting burner flame, short-cycling on the high-limit switch, and rust or soot around the heat exchanger. Carbon monoxide detector activation or a burnt smell during heating cycles are serious signs the exchanger has breached and needs immediate replacement.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e Because this part separates combustion gases from breathable air, only a factory-original exchanger should be installed. Genuine Lennox \u003cstrong\u003e93W29\u003c\/strong\u003e ensures correct alloy composition, sealed welds, and exact mounting geometry — protecting your household and preserving your Lennox warranty. In stock and ships same day before 3PM CST.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081067413875,"sku":"LNX-93W29","price":399.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-heat-exchanger-assembly-93w29","provider":"National HVAC Parts","version":"1.0","type":"link"}