{"product_id":"oem-lennox-modulating-gas-valve-15d34","title":"OEM Lennox Modulating Gas Valve — 15D34","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e15D34\u003c\/strong\u003e modulating gas valve continuously adjusts gas flow to the burners across a wide range of firing rates rather than switching between fixed stages. This variable-capacity control lets your Lennox furnace precisely match heat output to demand, delivering exceptionally even temperatures, quiet operation, and maximum efficiency from a single high-efficiency system.\u003c\/p\u003e\u003cp\u003eWhen a modulating valve fails, common symptoms include the furnace losing its ability to modulate and running only at full or minimum fire, no ignition, burners cutting out, erratic flame, temperature swings, or a modulating gas valve fault code on the control board. Rough or hunting flame behavior often indicates the valve can no longer regulate flow smoothly.\u003c\/p\u003e\u003cp\u003eModulating gas control is both safety-critical and central to your furnace's efficiency rating, which is why the OEM Lennox \u003cstrong\u003e15D34\u003c\/strong\u003e is the correct replacement. Its internal regulation, actuator, and communication with the Lennox control are matched to the system's design; non-OEM valves rarely replicate this behavior and can compromise comfort, efficiency, and safe combustion.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081077932403,"sku":"LNX-15D34","price":169.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-modulating-gas-valve-15d34","provider":"National HVAC Parts","version":"1.0","type":"link"}