We’re accustomed to having appliances in our home that run on natural gas. Stoves, water heaters, clothes dryers, and of course furnaces all commonly use natural gas. And in general, with basic precautions, this is all perfectly safe. But if your furnace’s heat exchanger cracks, it will seriously compromise your safety.
We’d like to give you a quick crash course in how to avoid a major heating hazard. We’ll explain what a heat exchanger is, why you must never run your furnace if you suspect your heat exchanger is cracked, and what to do about it.