wood burning fireplace air leak
I have a two story home with a wood burning fireplace. My home is about 40 yrs old. My fireplace has a metal door with a handle so I can open and close this door (not sure of the technical term for this flap/door). I do feel quite a bit of air coming in (we also have glass doors). How do I fix this? I know it's causing us to lose $$ due to the air leakish and having to compensate with our heating unit running more than it should.