Optimized Signal Strength: Nickel and copper alloy leads provide the consistent millivoltage required to keep pilot flame sensors operational

For contractors managing fan coil units or baseboard applications

Key Benefits for the Contractor

the 01-0838 provides reliable multi-circuit switching to stagger the load

White-Rodgers F89-0036 Well Optimized Signal Strength: Nickel andThe White Rodgers F89 0036 is a professional grade 1 2" NPT immersion well designed for heavy duty hydronic heating systems and boiler applications. Engineered for precision and longevity, this copper thermowell features a standard shank with a 3 1 2" insertion length, specifically sized to accommodate a 7 16" temperature sensing bulb. This design allows contractors to service or replace control bulbs without the need to drain the entire system,