17/01/2024

Install fans correctly

Tierhaltung

There are a few things to consider when installing barn fans. The best option, of course, is to build a new barn, where the fans are already integrated (correctly aligned according to weather and wind conditions). However, various fans can also be easily retrofitted to prevent or mitigate heat stress in cows or other animals. Please never forget that the thermoneutral zone for cows, i.e., their optimum temperature, is between approximately 7 and 17°C!

Here are a few important tips and guidelines:

Ensure sufficient air movement (draft 2-3 m/s)
A cooling effect occurs up to approx. 1m/s
Do not switch on the fan too late; ventilation should start at about 23°C (at a low speed already in spring so that the animals can get used to the draft).
Never position the fan against the natural wind conditions; it should draw in as cool air as possible (keep the intake side clear)
In extreme heat, run the fan at a low speed, even at night!
Priority of installation: above the cubicles, in the waiting area for the milking parlor/robot, above the feeding place
Install the fan max. 2-4 m from the open wall or install it directly into the closed wall
The lower edge of the fan should be about 2.5 m above the animals
Tilt angle forward of about 15-25° so that the fan blows over the back, otherwise it blows too high
The air flow in the lying area should pass approximately 20cm along the back of the animals
Distance to the first lying box is best 3-4 m
The throw performance indicates how many fans you need and at what distances: rule of thumb is 1m throw distance per 10cm rotor diameter
It is best to secure the fans at three points to prevent them from swinging

Here you can go directly to Stable fan program. We have everything you need:Fans, controls and thermostats, Accessories such as closing flaps and much more.
If you have any questions, please contact our consultants at any time - We are happy to help you!