I would like to install a z-wave tstat in the basement - for the most part, to keep an eye on the temp, and of course kick the heater on when needed.
Thing is, I have a 1960’s Sears in-wall gas heater unit (had it checked out and all is good, works well) with a Sears heat only mercury switch thermostat. The installed thermostat is shown in the pictures.
Can I use the CT-30? Picked it up super cheap and would be a shame not to. As you can see, there are only two wires and they aren’t labeled.
I was going to use an external transformer for c-wire too so the tstat would act as a repeater. I see that would go to C and RH.