Originally Posted by chopshop
check your owners manual for voltage rating, the one you are looking at is 24v. make sure it matches your rating. most thermostats range from 12 to 24 volts
Actually, this does not matter. As long as the thermostat has batteries to run the circuit, you are only switching the 12 or 24 volt circuits. And a circuit that can switch a 24v load can certainly switch a 12 volt load (amperage being equal).