Should a Furnace Damper Be Open or Closed in Winter?

It’s the middle of a Minnesota cold snap, your upstairs bedrooms feel like saunas while the basement is basically a meat locker, and you just discovered those mysterious metal levers in your ductwork labeled “damper.” Now you’re standing there with frozen toes asking the question every homeowner Googles at 1 a.m.: “Should these things be […]


