Many homes in Columbus have a forced-air gas furnace as their heating system. Any system that uses natural gas needs a few safety devices to prevent any potential problems, which includes your furnace. Here’s a brief description of the mercury sensor and other furnace safety devices.

  • Mercury sensor. This is the principle safety device of your furnace. The mercury switch detects if the pilot light or ignition system is turned on, then opens the flow of gas to your furnace. If the ignition isn’t detected, the gas won’t flow. This is vital to the safety of your home because otherwise, the furnace may flood it with unlit gas.
  • Carbon monoxide detector. The burning gas may contain trace amounts of carbon monoxide, which is supposed to be vented through the heat exchange and safely out of your home. If troubles arise with this process, the detector will signal that carbon monoxide is leaking out of the furnace. Every home with a gas burning appliance should also have a CO detector.
  • Emergency shut-off valve. This valve exists in the event of an extreme emergency such as a breach in the gas line or the like. It allows you to safely shut off the heater and stop the flow of gas, allowing you to call a repair technician and handle the problem.

For more information on the mercury sensor and other furnace safety devices, contact the experts at Quality Air Heating and Air Conditioning. We offer comprehensive Columbus furnace repair services, and we can discuss the mercury sensor and other furnace safety devices in detail with you. Pick up the phone and give us a call today!