Your Thermostat

Your thermostat is the wonderful device that senses the temperature of a specified area inside your home (typically a whole floor, but sometimes it will monitor a single room or group of rooms). If the temperature drops below what you’ve asked of the thermostat, it will signal your gas valve or the motor in your oil furnace to power on and create heat inside your furnace.

The heat from your furnace is then distributed by a fan in a forced air system, or by pump in a water or steam heat system. Once the heat has risen above the setting on the thermostat, the thermostat sends a message to the limit control element, which shuts off your furnace.