I wanted to ask you a quick wiring question - I need to run a wire to my new thermostat from the furnace - I have a spare telephone cable in the wall that has 4 22 gauge wires. I'll be running about 30ft and require 24v to power the system (drawing about 0.5 amps) The 4 wires are are independent insulated as well as being in cased in a blue phone cable.
My question is - would you know if 22 gauge wire will suffice? If not would using all 4 wires act as a higher gauge wire? I am trying to get around running a new wire.
Thank you gents. Turns out as I opened the wall to retrieve the 22 gauge wire found a 18 gauge that was already fished to my furnace room. Better to be lucky than right. Thank you again