Good evening everyone,
we built a house with Deutsche Fertighaus Holding Allkauf Haus and have a controlled ventilation system (WRL). We have been living in the house for 5 months now, and both of us frequently feel nauseous, have headaches, and burning eyes... I managed to keep the humidity at a maximum of 30% (in winter) using a humidifier. Now it’s around 40%.
In our opinion, the problem is the air quality. We have no idea what it might be. Using a smoke pen, I inspected the ventilation ducts in the house. The site manager initially said that air is extracted from the wet rooms (bathroom and kitchen) and fresh air is supplied to all other rooms.
Here is how it looks in our house:
Exhaust air: guest room (upper floor), office (upper floor), gallery (upper floor), dressing room (upper floor), utility room (ground floor).
Supply air: bedroom (upper floor), bathroom (upper floor), bathroom (ground floor), living room 3x (ground floor), kitchen (ground floor).
Is this correct?
Thanks and best regards
we built a house with Deutsche Fertighaus Holding Allkauf Haus and have a controlled ventilation system (WRL). We have been living in the house for 5 months now, and both of us frequently feel nauseous, have headaches, and burning eyes... I managed to keep the humidity at a maximum of 30% (in winter) using a humidifier. Now it’s around 40%.
In our opinion, the problem is the air quality. We have no idea what it might be. Using a smoke pen, I inspected the ventilation ducts in the house. The site manager initially said that air is extracted from the wet rooms (bathroom and kitchen) and fresh air is supplied to all other rooms.
Here is how it looks in our house:
Exhaust air: guest room (upper floor), office (upper floor), gallery (upper floor), dressing room (upper floor), utility room (ground floor).
Supply air: bedroom (upper floor), bathroom (upper floor), bathroom (ground floor), living room 3x (ground floor), kitchen (ground floor).
Is this correct?
Thanks and best regards
Bieber0815 schrieb:
Not here, I never would have expected that either. Roughly 30 m³/h (35 cubic feet per hour) through an open door (0.5 m by 1.8 m (1.6 ft by 5.9 ft)) results in a velocity of less than 0.01 m/s (0.02 mph). Typically, air also passes under the door through a slightly larger gap, and the residents can still easily open the door . Your doors seem to be very easy to operate!Well, 30 m³/h (35 cubic feet per hour) is really set quite low. My system pushes about 150 m³/h (177 cubic feet per hour) through. And it’s not the flow velocity but the pressure difference between the supply air side and the exhaust side. Our bathroom door at least moves in the half-open position. The door cannot stay almost closed because it opens about halfway (negative pressure in the bathroom due to exhaust).
Payday schrieb:
Well, 30 m³/h (18 cfm) is really set quite low. My system moves something like 150 m³/h (88 cfm).But not through a single duct/overflow, rather through the entire system. 30 m³/h (18 cfm) seems quite reasonable if you assume about 5 supply and exhaust vents each with the same airflow rate.
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