Includes a durable forged brass stem and ergonomic isolation handle for reliable manual flow control

this motor preserves the factory-specified static pressure and air throw

which eliminates the need to cut into or disrupt the system's 1-inch NPT equalizing pipes

Why does my 24V relay coil feel hot to the touch during operation

protecting the heat exchanger from overheating and preventing carbon monoxide fallback into the residential space

Tekmar Controls 302P Switching Relay 319852-301 Includes a durable forged brassThe Tekmar 302P Switching Relay is a professional grade solution for managing 2 zone hydronic heating systems with integrated priority logic. Designed for heavy duty commercial and residential applications, this unit allows a technician to connect up to two 24V (ac) thermostats to control two 115V (ac) circulator pumps. The microprocessor control provides a RoomResponse signal to optimize modulating condensing boiler efficiency by communicating real