Calculates the number of radiator sections needed to heat a room.
The radiator section calculator works out how many sections you need to heat a room, taking into account its volume, the number of windows, and the number of external walls.
Power = (volume × 40 + windows × 100) × K_walls K_walls: 1 external wall = 1.0; 2 = 1.2; 3 = 1.4 Sections = ⌈power / watts per section⌉
16 m², ceiling 2.7 m, 1 window, 2 external walls, 180 W per section. Power: (16 × 2.7 × 40 + 100) × 1.2 = (1728 + 100) × 1.2 = 2194 W. Sections: ⌈2194 / 180⌉ = 13.
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