For those unfamiliar with Lil House heaters, its a single barrel stove in a rather simple metal box with insulation and a blower so it can sit outside and blow heat into the house. It has the standard barrel stove hardware. I just completely rebuilt mine with a new barrel so it should last another six or seven years. It seems to work as normal. But, I would like to put a seal on the door so I have more control over the amount of air going into it. Has anyone tried putting a door seal on a barrel stove? Does it help or cause problems?