Featuring a durable cast aluminum body and high-torque actuator

Converting gas types requires specific orifice and valve adjustments per manufacturer guidelines

5" WC output ensures optimal combustion efficiency for natural gas applications

supporting up to 2000 CFM

is a specialized pilot safety component designed for gas-fired heating systems utilizing a Right Hand Thread configuration

Lochinvar & A.O. Smith 100287085 Door 328140-751 Featuring a durable cast aluminumFor veteran contractors maintaining high efficiency hydronic systems, the Lochinvar & A. O. Smith 100287085 Burner Plate Insulation Door is a critical OEM replacement part designed for precise thermal management. This 304mm diameter burner door insulation (replaces legacy part 100145383) is engineered to withstand extreme combustion chamber temperatures while preventing energy robbing heat loss. Specifically compatible with the Lochinvar Knight