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CowPlan are proud to work with world-wide market leading manufacturers TopCool, and their European distributor Magdek.

TopCool are market leaders globally, and offer fans designed specifically for the animal housing sector.  This means we are able to offer tailored solutions in order to ventilate old and new buildings effectively.  The range covers options from young calves to milking cows.


Having a Topcool Cyclone Fan will:

  • Protect cows digestion

  • Protect cows fertility

  • Protect the unborn calf

  • Allow cow to reach her 14 hours rest

  • Protect cows hooves



Primarily, we offer the HSLV (High speed, low volume) Cyclone fans for most cubicle buildings.

The FETF 2024   grant covers our fans:

FETF329CA - ECV fan - 125cm - Covers the 55inch cyclone fans
FETF330CA - ECV fan - 175cm - Covers the 72inch cyclone fans

We can also offer panel fans and basket fans.  Please ask for further information.

TopCool fans logo
TopCool fans logo

When natural ventilation is proving difficult, fans can be a huge benefit.

Topcool cyclone fans - graphic
Cyclone fan
King - Vortex Holsteins 55inch cyclones
Cyclone fan
Newton collecting yard 72 Cyclone
55inch cyclone fan
Cow shed fans
Basket fan for cow shed
Panel fan for cow shed
Cyclone close up 55DD-max

THI is a measure that has been used since the early 1990s. It accounts for the combined effects of environmental temperature and relative humidity and is a useful and easy way to assess the risk of heat stress.  

CowPlan THI Thermometer Image
Cow Plan have a dedicated THI calculator page here:
THI and lying times table
THI and milk yield effects table

Plan a cow shed  

Plan a business

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