Turn On Your Gas Furnace Safely with these TipsGas furnaces need electricity for blower operation and other electrically-driven components. If you have temporarily lost power to your home, use these tips for turning on a gas furnace safely.

Turning On a Gas Furnace Safely

  • Make sure the thermostat selector switch is set to OFF.
  • Go to the circuit box in your home.
  • Locate the furnace breaker. It should be clearly marked on the panel. (If it is not, make sure to label it for future reference.)
  • Turn the breaker to ON position.
  • Locate and turn on the furnace switch. It looks like a standard light switch. It is usually located near or in the furnace room at eye level.
  • Go back to the thermostat and set the temperature about 4 degrees above the room temperature reading.
  • Set the thermostat selector switch to HEAT.
  • Your furnace should be turned on. If it is not, call your HVAC technician.

More Furnace Safety Tips

Regular furnace tune-ups are important to prevent serious furnace issues and accidents related to gas byproducts, and to drive fuel efficiency and comfortable heating. Take a few moments to review these safety and performance tips:

  • Check the battery on the carbon monoxide (CO) detectors. There should be a CO detector installed in or near each bedroom, and 5 to 10 feet from the access door of an attached garage.
  • Inspect the heat exchanger for cracks. Contact your HVAC pro is you see any.
  • The flame should be a sharp blue. Any other color indicates dirt and grime accumulation, and should be cleaned.
  • The flue or sidewall venting should be free of obstructions, such as animal nests and debris.
  • Make sure the front panel door is closed. Newer furnaces have a safety feature that prevents operation if it is open, but older furnaces may not.
  • Don’t store any flammable materials near the furnace.
  • Check the air filter regularly. A dirty air filter impedes airflow, reduces performance and increases electricity and fuel consumption.

If you have any questions about turning on a gas furnace safely or other HVAC questions for your Central Arizona home, please contact Wolff Mechanical today.

Our goal is to help educate our customers in the Phoenix Valley area of Arizona about energy and home comfort issues (specific to HVAC systems). 

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