Thanks Drew. I hadn’t considered connecting a second thermostat or controller in parallel. I’m going to mull that over a few days, but it seems like it should work.
What do you think about this unit?
Digital Temperature ControllerOne of the images with this unit shows some suggested wiring examples, and they are all showing a “load” device being controlled. In my case, the t-stat really isn’t a load as it doesn’t require voltage, so it seems to me the correct way would be to connect it like the example they label as “Wrong Wiring”, except with the temperature probe connected as well.
The probe wire length should be long enough to reach the tank area through the bathroom cabinet that’s just to the left of the furnace. There’s already pass-through holes for the plumbing that I could route the wire through.
Thanks for the suggestion.
:):)