Abstract: A combination bath fan, register box, air conditioning and heating boot requires one opening on the wall or the ceiling of the bathroom, thus reducing the installation and maintenance costs associated with the ventilation of the bathroom. The combination includes a trim kit or assembly which is adapted to be fitted into a rough-in kit or assembly. The rough-in kit or assembly, typically mounted onto a building stud during the early phases of the building construction, has an air outlet which is connected to the outside air and an Inlet for receiving conditioned air to be distributed within a confined space. The trim assembly or kit is installed in the rough-in assembly. Louvers are provided around the perimeter of the face plate of the trim assembly to dispense conditioned air from the air inlet to the confined space with the appropriate air gradient. Air flow through the louvers is controlled using one or more slidable dampers mounted above the louvers.

Abstract: A combination bath fan, register box, air conditioning and heating boot requires one opening on the wall or the ceiling of the bathroom, thus reducing the installation and maintenance costs associated with the ventilation of the bathroom. The combination includes a trim kit or assembly which is adapted to be fitted into a rough-in kit or assembly. The rough-in kit or assembly, typically mounted onto a building stud during the early phases of the building construction, has an air outlet which is connected to the outside air and an inlet for receiving conditioned air to be distributed within a confined space. The trim assembly or kit is installed in the rough-in assembly. Louvers are provided around the perimeter of the face plate of the trim assembly to dispense conditioned air from the air inlet to the confined space with the appropriate air gradient. Air flow through the louvers is controlled using one or more slidable dampers mounted above the louvers.

Abstract: A flexible insulated air duct is provided with a core of a helical wire encapsulated in a tape, an insulation blanket wrapped around the core, and a jacket with a diamond interlock scrim on the outside of the insulation blanket. The jacket is comprised of an inside layer, a diamond-interlock scrim, a parallel scrim, and an outer coat layer. The diamond-shaped scrim has yarns arranged in a criss-crossed pattern, while the parallel scrim has yarns arranged in parallel. The criss-crossed yarns are made from a heavier gauge material with better tensile strength than that of the parallel yarns. The inside layer, the parallel and criss-crossed yarns, and the outer layer are laminated together using an adhesive. The completed jacket is pulled over the insulation blanket and the inner core to form a flexible air duct having a jacket with a diamond interlock scrim.