We present instruction which will help you in choosing appropriate fan for small wall or duct instalation :
1. Calculate the size of the room where the fan will be installed. Multiply all dimensions. The result of this calculation is a volume of the room: height x width x length = volume
e.g Bathroom : 2,6m high x 3m width x 4m length = 31,2 m3
2. In table below you have few different types of a room and its proper air exchange multiple.
Room Type |
Mulitiplicity |
Bathroom |
5-8 |
Toilette |
4-5 |
Kitchen |
5-10 |
Livingroom |
0,5-2 |
Office |
5-7 |
Bedroom |
4-8 |
Hallway |
2-4 |
Cinema/Theater |
7-9 |
Cafe |
9-11 |
Restaurant |
6-10 |
Shop |
8-10 |
Sports Hall |
6-8 |
Garage |
6-8 |
3. Calculate how many cubic meters of air should be processed by the fan in 1 hour – multiply multiple by volume – volume x multiple of an air exchange in 1 hour = exchange of a processed air in 1 hour.
e.g. 31,2 m3 x 5 = 156m3/h
4. In window product of every fan you can find characteristic.Choose fan with performance that matches your calculations.