I am replacing a wall mounted baseboard thermostat, double pole. The existing thermostat has a copper wire attached to a bolt on the back of the thermostat, the new one does not have this bolt. What do I do with the copper wire?


You didn't say, but it sounds like that wire is a ground. If it has no insulation or green insulation that would be the case and it can be simply tucked back into the box and ignored.

If it has any other color of insulation, however, it is a "hot" wire and will need to be used with the new thermostat.

Updated on January 25, 2018

Original Article:

Install Your Own Line Voltage Baseboard Heater Thermostat
By Dan Harmon