Durable Brass Construction: Resists corrosion and thermal expansion during high-cycle furnace operation

Common causes include a cracked heat exchanger

We recommend using this part strictly with the intended Honeywell series to ensure a proper NEMA-rated seal

Depending on the tubing material and nut type used

Lochinvar & A.O. Smith 100233587 Burner Gasket Durable Brass Construction: Resists corrosionWhen you are performing annual maintenance on a high efficiency Lochinvar Knight or A. O. Smith system, ensuring a gastight seal at the burner assembly is non negotiable. The Lochinvar & A. O. Smith 100233587 Combustion Burner Gasket is the professional grade OEM solution designed to prevent the escape of hazardous combustion byproducts and maintain the precise pressure balance required for condensing boiler efficiency. This specific boiler burner