When you’ve been using your gas-powered furnace flawlessly all winter long, and then suddenly you start hearing unusual noises coming from it, you may be alarmed. Sure, you expect to hear some noise when your furnace starts running—you’ll hear it cycle on and of course you’ll hear the whoosh of warm air coming through your vents.
What you shouldn’t be hearing though, is a boom shortly after the furnace turns on. What does this mean? More on that below.

Winter is officially here, which means if you don’t already have a fully functioning and efficiently operating furnace system, you’re going to want one real soon! If you haven’t scheduled heating maintenance yet, not to worry. In the absence of a complete system breakdown, it’s never too late.