Zalety rekuperatora ściennego latem – korzyści, o których warto wiedzieć
A wall-mounted heat recovery unit, primarily known for saving energy during the winter months, also offers several benefits in summer. While it doesn’t replace air conditioning, it can significantly improve indoor thermal comfort and help reduce overheating. This is thanks to the heat exchanger, which limits heat transfer between the outdoor and indoor air.
How does a heat recovery unit work in summer?
In summer, the wall-mounted heat recovery unit doesn’t recover heat as it does in winter – instead, its role is to help retain the cool air inside the building. In air-conditioned or well-insulated homes, the unit prevents hot outside air from entering the interior and at the same time minimizes the loss of cooler indoor air.
What happens inside the heat exchanger?
Inside the heat recovery unit’s heat exchanger, thermal energy is transferred between the exhaust air (coming from inside the home) and the supply air (coming from outside).
In summer:
- Warm air from outside enters the heat exchanger in the heat recovery unit.
- Cooler indoor air transfers part of its “coolness” (meaning it absorbs some of the heat energy from the incoming air).
- As a result, the air supplied into the house is cooler than it would be without the heat recovery system.
This way, the heat recovery unit slows down the warming of the interior, reducing the need for air conditioning or improving comfort in homes without it.
Main advantages of wall-mounted heat recovery unit in summer
- Maintaining a lower indoor temperature
During the day, the unit limits the inflow of heat — the heat exchanger cools the air entering the house.
At night, when the temperature drops, the constant supply mode allows cool air to enter the house.
- No drafts – thanks to the steady airflow, there’s no need to open windows, which prevents sudden temperature changes.
- Reduced air conditioning usage – the heat recovery unit supports cooling, so the air conditioner runs less frequently and for shorter periods.
- Better air quality – filters in the unit remove dust, pollen, and pollutants, which is especially important in summer when there’s dust from roads or high allergen levels outside.
- Quiet indoors – closed windows mean less noise from outside, such as traffic or neighbors.
The wall-mounted heat recovery unit is a year-round solution that brings benefits not only in winter. On hot days, it helps maintain a comfortable indoor temperature, saves energy, and improves air quality—without the need to open windows or rely heavily on air conditioning.
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