Is a Whistling Furnace Dangerous? What Homeowners Need to Know

A furnace should never produce a sharp, high-pitched whistle. When it does, homeowners often wonder, “Is a whistling furnace dangerous?” The quick answer is Yes, a whistling furnace can be dangerous because it can indicate a gas leak, which poses risks of carbon monoxide poisoning, fire, and explosion. A whistling sound can also signal other […]


