Adjustments are made via a secure screwdriver slot

the mounting flange must be sourced separately based on your piping requirements

Using the 240F rated spill switch 510-300-014 ensures the system meets the original manufacturer's specifications for thermal protection and prevents nuisance tripping common with lower-rated substitutes

Utilizing a high-grade charcoal filter element

For deeper wall assemblies

Weil McLain 511-724-253 Thermocouple 319848-301 Adjustments are made via aThe Weil McLain 511 724 253 Thermocouple is a task specific 48 inch push in thermocouple designed for high performance flame sensing in residential gas boilers and standing pilot systems. Engineered as a genuine OEM replacement part, this 48" lead ensures reliable millivolt signal transmission to the gas valve, maintaining the safety loop in LP (Propane) and Natural Gas configurations. When troubleshooting a pilot that will not stay lit or a burner