It specifically monitors flue venting

This model is intended for water heating and storage tank applications

High-Efficiency PSC Design: The 115V Leadless PSC Motor utilizes a 20uF @ 370V capacitor (often sold separately) to ensure smooth starts and lower operating costs

indicating a potential short in the windings

High-Voltage Efficiency: Rated for 460V applications

McDonnell & Miller 47-2 Feeder Els PW 17895 It specifically monitors flue ventingThe McDonnell & Miller 47 2 is a heavy duty mechanical water feeder and low water cut off (LWCO) engineered for steam and hot water boilers using a cold water feed. This dual function control, part number 132800, features quick hook up fittings to simplify integration into existing gauge glass tappings. Unlike electronic alternatives, this mechanical feeder provides proportional feed action and maintains a minimum safe water level independent of