Fan with timer: why is that useful?
A fan with a timer switches itself off after a set period. Handy for the night, but also for savi...
Nieuws (energiebesparing)
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Balanced ventilation with heat recovery: pros and cons
Balanced ventilation with heat recovery saves energy by preheating the incoming air. We outline t...
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How do you ventilate in winter without losing too much heat?
Good ventilation in winter is also possible without cooling down the entire room. Read how to bri...
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Should ventilation grilles always remain open?
Many people close their ventilation grilles in winter to save heat. That is usually not a good id...