Replacing an electric heat thermostat
A family member has just purchased a three room condo that has electric heat, and the existing thermostats are about twenty years old, and the numbers for the temperature settings are illegible. Since I've replaced thermostats in my own home I decided to replace hers as well, so I picked up four Honeywell electric heat thermostats.
Problem is I can't seem to find any labeling on the back of the existing thermostats to determine which wires go where with the replacements. They both have two red wires and two black wires, but where the Honeywell's are labeled L1 L2 T1 T2 there doesn't seem to be anything like that on the back of the old ones.
I'm just wondering how to procede as far as figuring out what goes where, or am I better off getting an electrician to do the job?