This is 30 years old.I got it working again. It really should be replaced. Just because it makes heat doesn't mean its safe. I recommend getting are carbon monoxide detector or 2 in the house if you insist on keeping it on. The old standing pilot light is a safety hazard and waists gas. I can repair or replace gas residential furnaces in Henry county Ga . Aaac service heating and air 7708754113
