I want to change my old round dial thermostats out for new digital, programmable units.
My house was built in the early 1900s and is all knob and tube wiring to a fuse box.
My question is, can I simply attach the new unit to whatever wires are connected to the old one?
Also, wondering specifically if there is a digital model that can "talk to" a mate on another floor.
I'll be renting the upstairs of my house, but will be sharing the single furnace and want to have control of the heat.
Thank you kindly.
The old thermostat should have letters near the terminals where the wires are connected. Note which wire goes to what terminal and simply reconnect to the corresponding terminal in the new thermostat. Most T-stats I've seen are marked with the same letters, with a few exceptions.
As for the remote unit, check out www.honeywell.com They have a line of wireless T-stats, but they are a little pricey.