System Safety Redundancy: Vital for preventing motor burnout caused by condenser fan failure or fouled coils

airtight seal at the base of the combustion exhaust assembly

supporting up to 2000 CFM

Durable Construction: Metal case and premium internal components provide reliable operation in demanding HVAC environments

Lochinvar & A.O. Smith 100287085 Door 328140-751 System Safety Redundancy: Vital forFor 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