Cooking In A House (To Remove The Smell Of). Smell may be avoided by making in the tunnel of the chimney a little door on a level with the ceiling of the kitchen, through which the smell will escape. If the top of the door is lower than the ceiling, it should be connected with an iron tube running up to the same height in the chimney, by which means it will be secure from the effect of sudden changes of weather, etc.; or a distinct tunnel may be built up for the same purpose.