DUK question
Why does electricity cost increase in winter?
During the winter, the electric pre-heater in the heat recovery ventilation unit operates to prevent the heat exchanger from freezing, making it impossible to turn off the pre-heater. Increased electricity consumption may also result from clogged filters in the ventilation system or an unbalanced ventilation setup. To reduce electricity consumption, we recommend: Replacing the filters […]
What to do when excess moisture accumulates on windows?
In newly built homes, it is common for new homeowners to encounter excess post-construction moisture during the first year, which can cause window condensation. A heat recovery ventilation unit is designed to remove contaminated indoor air, supply fresh air, and recover heat, but it is not a dehumidifier. Therefore, if the humidity levels in your […]
In summer, it’s hot and stuffy at home. What is the best way to use a heat recovery ventilator to keep the house cool in summer?
Opening the windows on a hot day won’t cool your home, it will just let more hot air in. A heat recovery ventilator retains heat in winter and cool in summer. Therefore, we do not recommend switching off the heat recovery ventilation system in summer either – keep it running at low power. If possible, […]
Can I combine a ventilation unit with an air conditioner?
An eternal question with a standard answer. Two in one will never be as good as two separate ones – that goes for coffee as well as for engineering solutions. The key is to understand that ventilation and cooling require very different amounts of air. 80-100 cubic metres per hour will be enough to ventilate […]
Will the Carbon filter protect me from my neighbors burning firewood?
The activated carbon particles in the Carbon filter material are designed specifically to trap odors. The filter material itself is also denser than M5, but less dense than F7: Filtering class EN 779:2012 Filtering class ISO 16890 Recommended replacement frequency M5 ePM10 55% every 6 months F7 ePM1 70% every 4 months Carbon ePM1 […]
Which kitchen extractor hood to choose?
Install a recirculating cooker hood in A, A+, A++ sealed dwellings. Its purpose is to collect moisture and grease. A recuperator will remove odours from cooking through the air vents in the kitchen area. The use of carbon filters is possible but not necessary. Almost any cooker hood will become a recirculating cooker without being […]