In swimming pool halls, high relative humidity and condensation can reduce the well-being of the visitors and cause damage to the building. Dantherm’s corrosion-proof dehumidification plants offer significant heat recovery and high-quality management of the indoor climate.

The DanX AF is a highly efficient heat pump dehumidification system which controls the humidity and indoor temperature whilst offering significant running cost reductions.

The DanX AF is the obvious choice for limited-space applications, for pools of limited use or when older ventilation plants need replacing or renovation.

DanX AF daytime: Recirculation with heating and dehumidification with heat pump and a proportion of outside air.

The unit can be installed suspended under the ceiling of the pool room. A water-cooled condenser can be integrated into the heat pump to allow excess heat to be transferred back to the pool or the hot water supply, where the energy is efficiently reused.

All DanX systems are supplied with a control package, which takes demand management to a new level. Based on years of experience and on-going development, the control strategy has been optimized specifically for Dantherm swimming pool units. Read more about the user friendly DanX Control System.

View our wide selection of DanX ventilation units and range of accessories below.


  • Hotel pools
  • Wellness centres
  • Municipal/Commercial swimming pools
  • Leisure fun pools
  • Leisure centres
  • Spa resorts

Features and Advantages

  • Strong cabinet of hot dip galvanised closed framework fixed with aluminium corners and internally insulated with mineral wool.
  • Hot dip galvanized sandwich panels with 50 mm insulation (Thermal transmission T3 / Thermal bridging TB3 / Air leakage L3 according to EN 1886).
  • Internal partition wall is 30 mm thick and built from hot dip galvanised 1,25 mm sheet material insulated with mineral wool.
  • Inspection doors with strong hinges and tongue locks with handles or square keys.
  • Heat pump with high COP and optional water-cooled condenser.
  • Optionally all internal steel components including fans and panels are powder painted before assembly (Corrosion class C4).
  • A 70 μm powder paint finish on the outside panels is available for units to be installed outdoor in aggressive environments.
  • All fasteners, bolts and nuts are stainless steel or special protected.
  • All coils with aluminium frame, prepainted fins and epoxy painted.
  • Replaceable drop eliminator plates for airspeeds up to 4 m/s.
  • Most energy efficient solution on the market.
  • Demand and precise control strategy.
  • 30 years of experience — designed specially to withstand the aggressive environment.