the DPDT 70665406 can be used in place of an SPDT relay by utilizing only one set of poles

preventing the system from firing if the oil is too cold for proper atomization

What is the thread size for the York 025-28678-112

it is professional best practice to inspect all limit switches in the circuit simultaneously to ensure consistent thermal response across the heating cycle

As a direct replacement for the Lochinvar PRS20031 and 100166126

Lochinvar & A.O. Smith 100346617 Burner Assembly 321894-709 the DPDT 70665406 can beThe Lochinvar & A. O. Smith 100346617 Burner Assembly is a factory authorized OEM heating replacement part engineered for high efficiency residential and commercial water heaters. This 18 inch Ultra Low NOx (ULN) burner assembly is the direct replacement for the obsolete part number 100342835. It features an integrated gas valve (1 inch cavity) and TCO (thermal cut off) to ensure precise fuel modulation and combustion safety. Designed specifically for