We don’t want to act alarmist about gas furnaces, because they’re generally safe options for home heating. Furnace manufacturers build gas furnaces with safety features and must meet strict standards. If you take care of your furnace with regular maintenance each fall, it has little chance of becoming dangerous.
But we want to bring your attention to a furnace problem that’s the most common cause for a gas furnace becoming unsafe: a cracked heat exchanger. If this happens to your furnace, you’ll either need immediate heating repair in Bryn Mawr, PA or a full furnace replacement.