Energy-efficient ventilation: how to lose the least heat
They seem to work against each other: wanting to insulate the house well, but at the same time also wanting to ventilate sufficiently. Ventilation is very important for the health of the occupants. In addition, insufficient ventilation can in the long run lead to mould growth and wood rot in, for example, the roof structure. In old homes there is often sufficient ventilation because of the existing seams and gaps, without specific attention needing to be paid to this. This is different in newer homes that are better insulated. EnergieAanbieding.nl explains how to ventilate in an energy-efficient way.
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01Heat loss is unavoidable
Ventilating the house inevitably also means losing heat. Fresh air has to be brought in from outside, while (warm) air also flows out of the house. In a sense this is a waste of energy, but it is nevertheless very important. A house that is not ventilated is very unhealthy for all occupants. The air can become damp and, moreover, harmful substances such as particulate matter build up. Rot can develop in timber structures. The costs this causes are a good deal higher than the bit of energy loss that comes with ventilation.
Ventilating without wasting a lot of energy
Obviously, the heat loss with an open outside door is greater than with a special ventilation filter. Although heat loss cannot be prevented, it is possible to ventilate in an energy-efficient way. It is important here to keep the method of ventilation itself under control. So it is wise to insulate the house well and to ventilate it only with special ventilation systems.
Mechanical ventilation
Many houses have a mechanical ventilation system that extracts air from certain rooms, such as the kitchen and the bathroom, and then discharges it through the roof. Normally these systems need energy. For the system to work optimally, regular maintenance must take place. Clean the system so that ventilation can be optimal and no more energy than necessary is consumed.
Ventilation grilles and small windows
Newer homes in particular have special ventilation grilles, usually located at the top of a window. In principle, these should always be open, day and night. If there are no ventilation grilles, it is wise to open a small window regularly.
Balanced ventilation
A special form of ventilation system is balanced ventilation. Balanced ventilation extracts just as much air as it supplies. It usually contains a special heat recovery system (wtw system), which provides energy savings. Balanced ventilation does, however, need a good installation and good maintenance to be effective.
Energy loss through ventilation is not waste
We are all increasingly concerned with energy saving, energy deals, green energy and other ways to save money and energy. However, it is important to see ventilation separately from energy loss. Ventilation is essential and energy loss is unavoidable. Ensure an energy-efficient method of ventilation and do not make the home completely airtight.
Energy-efficient ventilation? Read about it on EnergieAanbieding.nl
Tips for losing less heat when ventilating.
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