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Heat Loss Calculator
Height of room (m)
Width of room (m)
depth of room (m)
Window area (m
2
)
Type of room
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Living Room
Bedroom
Hallway or Kitchen
Bathroom
What is below the room?
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Heated room
Soil under wooden floor
Soil under solid concrete floor
Air under suspended concrete floor
What is above the room?
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Heated room
A pitched uninsulated roof
Pitched roof insulated 50mm
Pitched roof insulated 100mm
Flat roof uninsulated
Flat roof insulated
Type of outside walls
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Brick Cavity
Insulated Brick Cavity
105mm Solid Brick
220mm Solid Brick
Wood frame
Type of windows
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Wood/Plastic double glazed
Metal double glazed
Metal Single glazed
Wood Single glazed
Number of outside walls
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One
Two
Three
Watts required
BTUs required
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