Like I said, I'm still not sure the problem has been solved but I should know by tomorrow night if it is working. I still haven't heard it turn off and on automatically according to the room temperature. One of the problems is that the boiler is in the basement and I don't hear a thing. I am constantly running up and down the stairs to see if its on or off. Could it be that the bimetal coil is malfunctioning?
The new thermostat is a 30vac and of course I threw away the old one and have no idea if it is the right voltage. It may have been a 24 to 27 Vac since it was Honeywell's round classic. My old one is not like the picture on the web because it only controls the heat, not a cooling system, too. How do I know how many volts are coming into the thermostat?
Don't worry, Jon, I am so scared of electricity my kids make fun of me. The last thing I want is an electrical zap. I'm not playing with the wires, just checking them, adjusting the calibration and trying to make sure that the new thermostat is compatible with my heating system.