Floor *

Floor level of room Room height Floor area in square feet

Walls *

Windows *

Outside wall typeLength of outside wall(s) in feetWindow typeArea of window(s) in square feet

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Variations

Cooler Room
Exposed Situations
Internal Room With Fan Extraction
All window walls
Single Storey Building
Ceiling without Insulation on Top Floors and Single Storey buildings
Floor with Insulation
Velux Windows / Skylights:

Window type Area of glass in square feet

New Velux Window / Skylight

Your room requires:

 WATTS

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