Broad Compatibility: Cross-referenced for use across multiple Lochinvar and A

Featuring a 1/2" x 5/8" ODF solder connection and a 5-foot capillary tube length

000 BTU/hr capacity across varying flow rates

Why is the BTU rating significant for this relief valve

Lochinvar & A.O. Smith 100112351 Burner Assembly 321894-706 Broad Compatibility: Cross-referenced for useThe Lochinvar & A. O. Smith 100112351 Burner Assembly is a critical component for restoring the combustion efficiency of low NOx natural gas water heaters and commercial boilers. As a genuine OEM 18 inch natural gas burner kit, this assembly is engineered to maintain the precise thermal output required by high recovery units. It features a factory installed #37 orifice, ensuring the correct BTU input and gas to air ratio for stable flame propagation