7. Installation – using a convection chamber A convection chamber is just a lightweight metal box with a sloped top to direct the heat out into the room. The slope at the top makes all the difference, as does insulating the chamber with a quilt of fibreglass wool. In normal operation the surface temperature of the chamber may become almost as hot as the stove itself so that the added surface area all helps to boost the convective flow of warmth out into the room. XXAny blacksmith or sheet metal worker should be able to produce a box for you if you provide the basic dimensions. Don't make things too cramped – you need a sufficient gap between the stove and the box to allow the air to circulate freely. XXTo finish the box off at the front it is normal to fit a mitred strip-steel strip somewhat in the manner of a picture-frame. The trim is also useful in concealing the fibreglass insulation that covers the chamber on all three sides as well as on the top.