{"product_id":"oem-lennox-gas-valve-13h33","title":"OEM Lennox Gas Valve — 13H33","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e13H33\u003c\/strong\u003e gas valve controls the flow of natural or LP gas to the burner assembly in your Lennox furnace. It opens and closes on command from the control board to deliver the precise amount of fuel needed for safe, efficient combustion, and integrates the safety shutoff and pressure regulation your Lennox system was engineered around.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms:\u003c\/strong\u003e When the \u003cstrong\u003e13H33\u003c\/strong\u003e fails, you may experience a furnace that ignites but won't stay lit, no heat despite a calling thermostat, delayed or rough ignition, a clicking valve that never opens, or the smell of unburned gas. Valves can stick, fail to modulate correctly, or lose their internal regulation over time.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e Gas valves are safety-critical components with tightly specified pressure ratings and orifice sizing. Using the factory Lennox \u003cstrong\u003e13H33\u003c\/strong\u003e guarantees correct manifold pressure, proper safety interlock behavior, and a direct bolt-in fit — protecting both your equipment and your home. Aftermarket substitutes can deliver incorrect gas flow and compromise the safety chain your Lennox furnace depends on.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081115255155,"sku":"LNX-13H33","price":169.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-gas-valve-assembly-LNX-13H33.jpg?v=1783761218","url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-gas-valve-13h33","provider":"National HVAC Parts","version":"1.0","type":"link"}