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: