How to set the hood in a new building and remove the reverse draft?
Hello. There was a question about buying an apartment. On examination, 1-room. apartments, in a new building, that’s what happened: there are 3 exhausts in total. One in the bathroom (working fine) and the second in the kitchen. One of the kitchen hoods works with reverse draft. Because of this, the apartment is very cold and a gas boiler shakes a lot of gas.
When I open the window for ventilation, all 3 hoods work fine. But I will not sit in the winter with the windows open ..
The question is whether it is possible to put supply valves in the room and kitchen on the windows, and to install a check valve in all 3 hoods? Will this save the situation and will the walls near the hoods freeze due to non-return valves? If it does not help, then what should I do?
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Good afternoon, Victoria.
The situation is not the most critical:
1. Install on the window in the kitchen not the supply valves (aerovents), but the five-step opening. The first opens the sash by 5-7 mm. (principle of micro-ventilation) subsequent open 1cm. You will be able to independently adjust the traction without tangible cooling the room.
2. You cannot put a check valve on everything because of safety precautions. The ventilation duct that works must remain with natural ventilation. This is a gas requirement due to the availability of individual heating. Put a cooker hood on the ventilation duct that works with reverse draft (be sure to install a check valve during installation). If for some reason you do not want to set the kitchen, put a quiet forced with a check valve. Turn it on while cooking and mold will not appear. We have a good articlewhich may help.
If you wish, you can repair the problematic ventilation duct. I assume that the roof is flat - then you can find your channel and install a turbo deflector. The principles of its work and the nuances of choice can be found in this article.