This Vents VK 250 U Centrifugal Fan has an electronic temperature and speed controller (U-module) as an extra option. This allows you to have the engine speed (air capacity) automatically adjusted to the air...
Tube fans are ideal for smaller rooms where you do not need so much suction capacity. They can be used for example in small growing areas or even toilets and bathrooms. Tube fans are easy to set up. You can connect the tube fan in its entirety in an air duct. Because of its low suction capacity tube fans are especially suitable for short vents. You can also connect a fan controller in order to control the speed of the fan.
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