Swimming pool dehumidification with heat pump and cross flow heat exchanger. The DanX XWPS combines the advantages of a heat pump and an outside air dehumidification system. Energy recovery of up to 100% makes this system the most energy-efficient choice on the market. The integrated mixing box ensures that only the exact quantity of outside air required to sustain comfortable conditions is supplied. For further energy optimization, a water-cooled condenser can be integrated into the heat pump. This allows excess heat to be transferred back to the pool or the hot water supply, where the energy is re-used.