We have a Lennox Pulse 21 furnace. Temp is set at 72 but the furnace stops once the temp reaches 66 degrees. Thermostat seems to be working. The seems to be a problem just when it is really cold (0 to 10 degrees).

I have a ritetemp #8035c, My target temp is set at 70, when my room temp reached 70 my unit did not turn off . I would like to increase the target temp upward to 76 to try to have my temp raised. How do I do this ? I don't have a manual. Can I get one?

Hello, This is my first time posting here, but I figured it was a good place to start for some advice. I just bought a new townhouse a few weeks ago and have been having some heating issues since moving in. The actual furnace (Goodman GMS 8045) was installed in June of '06 while the unit was...

I've got a Beckett oil heat water on demand furnace that heats through baseboards. Since this past weekend the furnace hasn't been kicking on when the temperature drops below my set temp of 68 degrees. I have to go down to the furnace and simply touch the top of the reset box for it to kick on. ...

I have an oil heater. We have been having problems with the thermostat or heater. If we turn on the switch on the heater and leave the thermostat on the lowest setting, the 2nd floor gets very hot. The base board radiators down stairs did not get hot at all until we pushed the thermostat up, and...