We could all agree that home heating costs are going straight up. Which is why keeping that expensive warm air inside is very important. When chimney's are not in use that expensive heat is escaping straight up them. One would think closing the damper would be enough to keep cold air out and warm air in, but not necessarily so. #heating #costs #fireplace #plug #homeheating #homeheatingcosts #expensive #chimney #chimneyplug #saveheat #saveenergy | HouseCalls