and 68 series boilers

which prevents cold drafts and reduces thermal stress on the system

retracting the shaft upon loss of pilot air pressure

the 632520R is the direct factory-identical replacement for the obsolete 632520 part number

The York S1-025-41239-000 Heater Assembly is a high-performance 5

Weil McLain 381-356-534 Gas Valve Refrigerant and 68 series boilersThe Weil McLain 381 356 534 Gas Valve is an OEM combination gas control valve engineered for precision fuel regulation in high efficiency propance boilers. Designed with a 1 2" x 1 2" NPT connection, this 24 volt gas valve features a step open function for controlled ignition and stable burner performance. As a direct replacement for discontinued models like the 511 044 258, it is commonly utilized in the Weil McLain EG Series 2 through 4 boilers