I'm actually saddened by the fact that my home is so well insulated now after we added in another foot of it in the attic and got some strips around the doors. I have considered opening things up a bit, because sitting by the fire when you can't even tell how cold it is outside just doesn't hit the same.
Sitting by a fire in a home that already has less oxygen probably makes that CO^2 level even higher. I gotta get one of these it'd seem.
