Hello everyone.
The ducts in my house make a loud booming noise when the heat turns on and again after it cools down. Sounds like someone is banging a metal trash can with a hammer. It's so loud that I'm ashamed to have friends over.
My house is on a crawl space, and I have no easy way to reach the ducts. Can I do anything to fix this? I just got a new heater and decided not to get a humidifier (since the old one didn't do much good). Will a humidifier help the problem?