Spec Sheets Horizontals (PDF) Verticals (PDF) Towel Rails (PDF) Calculator 1. Select measurement type Metric (metres) Imperial (feet) 2. Your room dimensions Height of room: Width of room: Length of room: Window Area x2: 3. Type of room: Please select... Living Room Bedroom Hallway or Kitchen Bathroom 4. What is below the room? Please select... A heated room A wooden floor A concrete floor 5. What is above the room? Please select... A heated room Roof space with no insulation Roof space with approx. 50mm insulation Roof space with 100mm+ insulation A flat roof with no insulation A flat roof with insulation 6. Select type of outside wall: Please select... Brick Cavity Insulated Brick Cavity 105mm Solid Brick 220mm Solid Brick Wood frame 7. Select type of window: Please select... Wood/Plastic double glazed Metal Single glazed Wood/Plastic single glazed Wood Single glazed 8. Select number of outside walls: Please select... None or One Two Three Watt/BTU requirements: Watts Required: BTU's Required: