Hello everyone, the title already describes the problem. Approximately 20% humidity in all living and sleeping rooms. We moved in about two weeks ago. That can’t be normal, right? I expected such low humidity only after 2-3 years, but not right from the start...
The first night in the house was really horrible. On top of that, we have been dealing with colds and coughing the whole time. We now have a humidifier running all night in the bedroom (starting in the evening, about 12 hours total) and wake up with around 35-40% humidity.
Could something be set incorrectly in the mechanical ventilation system with heat recovery, or is this low humidity normal in a new house?
What can we do? Apart from the bedroom, we don’t notice it being a problem in any other room. Enthalpy exchangers are supposed to increase humidity by a maximum of 5%, right?!
Thanks for your feedback and best regards
The first night in the house was really horrible. On top of that, we have been dealing with colds and coughing the whole time. We now have a humidifier running all night in the bedroom (starting in the evening, about 12 hours total) and wake up with around 35-40% humidity.
Could something be set incorrectly in the mechanical ventilation system with heat recovery, or is this low humidity normal in a new house?
What can we do? Apart from the bedroom, we don’t notice it being a problem in any other room. Enthalpy exchangers are supposed to increase humidity by a maximum of 5%, right?!
Thanks for your feedback and best regards
X
xMisterDx4 Mar 2023 18:05profil65 schrieb:
I think the idea of using a humidifier is good, but please don’t overdo it, or your next post might be something like “Help, we have mold in the bedroom, what’s causing it?” or something similar 😱 That will probably happen, unfortunately. Especially since apparently 20 EUR per room is being saved on decent hygrometers. The hygrometer in the living room might still show 20%, while the humidifier creates a tropical 80% in the bedroom.
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WilderSueden4 Mar 2023 18:47For 20€ you can already get a set of three, which is usually sufficient. Accuracy is not especially critical; if you aim for 45-50%, you will generally end up with values between 40-55% even with cheaper options. There should be no issues with mold in a new build at that range.
Tolentino schrieb:
I doubt that a standard household humidifier can maintain a constant 80% relative humidity at 20°C (68°F) in a home with mechanical ventilation with heat recovery. The experiment has just started anyway 😉 let’s wait and see.
A small(?) bedroom with 2-3 exterior walls(?), 2 people plus a humidifier, underfloor heating off, mechanical ventilation with heat recovery adjusted accordingly — it should be possible to achieve >70% relative humidity at <18°C (64°F) indoor temperature in winter if you put some effort into it.
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Ypsi aus NI5 Mar 2023 01:09Guys, we reached 51% humidity at peak. Otherwise, despite using a humidifier, we hover around 40%. The hygrometer is permanently installed only in the bedroom, and that’s the only room we humidify. We don’t humidify the other rooms because we feel comfortable there. We will keep monitoring everything and see how we adjust to the house and the indoor humidity.
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