The fire needed for an air-tight house is one that can get its combusion air from outside. This is called Direct Vented. We are installing a Metro Wee Curve DV with 3kW wetback. To provide for the air supply we installed a standard 100mm drainage pipe through the slab floor and this can then be connected to the intake flange of the fire using a flexi-flue. Fireplace tiling, showing pipes for wetback connections and hole in floor for DV flue.    Next Page... 40 - Finishing fixes |