Lochinvar & A.O. Smith 100289437 Gasket 323613-751 What is the difference between

What is the difference between the AG13 and AG14 series

making it the standard Johnson Controls replacement part for high-voltage control circuit isolation

mitigating the risk of high-side to low-side leakage that leads to overheating and premature failure

What is the difference between direct acting and pilot operated valves like the 8210G18

Lochinvar & A.O. Smith 100289437 Gasket 323613-751 What is the difference betweenFor veteran HVAC contractors servicing Lochinvar Knight or A. O. Smith high efficiency boilers, maintain combustion integrity with the Lochinvar & A. O. Smith 100289437 Gasket Kit. This essential burner gasket replacement prevents dangerous flue gas leakage and ensures a high pressure seal across the critical combustion interface. Designed for WH055 and WH085 residential boilers, this kit provides a professional grade heat exchanger seal that