Pay in 4 interest-free payments of $31.51 Learn more
Ships within 48 hours · Estimated delivery Sep 18 - Sep 23
the R40154B010 (functionally identical to 40154B-010) prevents the heat exchanger from reaching critical temperatures by interrupting the burner circuit when airflow is restricted
ensuring the mounting holes and electrical connectors align without field modification
vibration-free connection between 1/2-inch and 5/8-inch shafts
This model features a 1 1/4" BSPT connection and is equipped with a single pole
Whether integrated into your existing ductwork or operated as a wall-mount unit
Laars Heating Systems E2103600 Sensor 321142-301 the R40154B010 (functionally identical toThe Laars Heating Systems E2103600 Sensor is a critical 15' water temperature sensor designed for precision monitoring in high efficiency hydronic systems. Engineered for seamless integration with Laars boiler control boards, this thermistor based probe provides real time resistance feedback to the primary logic controller, ensuring accurate secondary loop or tank temperature tracking. The extended 15 foot lead allows for flexible aquastat placement