How a furnace thermostat works 3 Articles

by Clacky McSnackins

A Furnace thermostat is a relatively simplistic device. However, looking at it would seem like it is much more complex in nature. The standard mechanical thermostat, which is used in most homes, is literally nothing more...read more

by Allen Teal

All furnace thermostats work on the same principle. Some are just more sophisticated than others. You can buy them with timers, If your system is large with multiple units, you can thermostats that can figure out if a l...read more

by Richard Serra

A simple thermostat uses a mercury switch that is attached to a heat sensing spring. As the temperature drops the spring contracts thereby moving the mercury switch to a position whereas it shorts the contacts via of the ...read more