I installed a unit heater in my garage. My house has three zones of hot water heat. I was not using my basement zone. So I hook into that zone for the unit heater in my garage.
My problem is that the T stat in the garage tells the pump to circulate and to open the zone. So that leaves the motor on the unit heater. I bought a snap disc, thinking that would do the trick strap to the cooper line. It will not close it unless I take a torch to the snap disc.
Is there any simple relays I can use to operator the fan?