Common causes include a cracked heat exchanger

contractors can restore original factory specifications and maintain proper linear flow characteristics in demanding commercial hydronic applications

This is a genuine Lennox OEM part designed for specific furnace models

This Premier White assembly includes both a medium cover plate (6

ensuring no modifications are needed during the swap

United Electric B100-120 Temp Switch 326070-701 Common causes include a crackedThe United Electric B100 120 is a heavy duty single pole double throw (SPDT) temperature switch engineered for mission critical industrial process control. This 100 Series mechanical switch provides a reliable interface for alarm, safety, and emergency shutdown functions in HVACR, boiler, and heat tracing systems. With an adjustable setpoint range of 0F to 225F and a maximum bulb temperature of 275F, it delivers high accuracy monitoring via a nickel