In Spain, the suitability of ERV (Energy Recovery Ventilation) depends mainly on the local climate characteristics and indoor humidity requirements.

‌Northern coastal areas (such as Basque Country and Galicia)‌

This region has an oceanic climate with high humidity and frequent rainfall throughout the year¹. ERV can effectively exchange indoor and outdoor 

moisture, avoid mold problems caused by excessive indoor humidity, and maintain stable temperature.

‌Mediterranean coastal areas (such as Barcelona and Valencia)‌

Although the summer is dry, the winter is mild and the humidity fluctuates greatly in coastal areas. ERV can reduce the dehumidification burden of 

air conditioning through humidity exchange, balance the difference in indoor and outdoor humidity, and improve comfort.

‌Canary Islands‌

The subtropical climate is warm and humid all year round. ERV retains some humidity when introducing fresh air to avoid excessive drying. It is 

suitable for hotels, residences and other places that require stable humidity.

‌New energy-saving buildings or passive houses‌

Some new residential buildings or energy-saving renovation projects in Spain may require efficient ventilation systems. ERV can cooperate with the 

airtight design of the building to reduce energy loss and meet humidity control needs