If your gas furnace is dirty, it will not heat as well as it could. Cleaning the burner can help improve your home’s heating efficiency. Here are four steps to cleaning a gas furnace burner:

  1. Turn off the power to the furnace and open all of the registers.
  2. Remove any objects or insulation that may be blocking the burner’s air intake and exhaust ports.
  3. Use a wire brush to clean all of the surfaces around the burner, including the flame tube, air inlet tube, and exhaust port. Be sure to get into all of the nooks and crannies.
  4. Pour a small amount of oil into each port on the flame tube and light it with a match or lighter. The oil will help prevent rust from forming on the metal surfaces. ..