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View Full Version : Two relays, two circuits, one thermostat


zcrow
Dec 18, 2013, 12:07 PM
Hi. I'm brand new here. We have the following set up: A 4000W electric heater in the living/dining room running off a low voltage thermostat and a separate baseboard heater in the kitchen running off its own line voltage thermostat. The heater in the living/dining is using a Honeywell R841C relay. I now have a second identical relay that I would like to wire into the kitchen baseboard circuit and have both relays controlled by the same thermostat that is controlling the living/dining heat.

I want to leave the existing kitchen thermostat in place so that we can not have it on at all if we don't want to but in case we forget to turn it off when we go out, it won't just keep running for hours and hours, trying to heat the entire house because the other thermostat will cut the power to it.

Is it possible to just run two of those relays in parallel with each other as in 2 white wires together, 2 red wires together even if they are on different circuits? If I can't is there a way to wire this up and have it work?