ᐅ Controlled residential ventilation Dry air – are humidifiers the right solution?

Created on: 21 Jan 2018 09:43
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Barossi
Hello,

We have a great controlled residential ventilation system from Zehnder ComfoAir Q450 and are very satisfied with it. In winter, we set the ventilation rate to level 1 (reduced). Currently, the rooms have about 35% relative humidity. In the living room, especially with the use of the tile stove, it sometimes drops below 30%. What should we do?

We are considering installing a humidifier in the living room (just under 60m² (645 sq ft)).

Do you have any tips regarding this? Especially concerning generally low indoor humidity?

Best regards,
Barossi
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Baumfachmann
22 Jan 2018 00:11
Milan is not bad either.
The Zehnder is a bit quieter and very easy for a layperson to maintain. The replacement filters are also very affordable online.
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Baumfachmann
22 Jan 2018 00:13
I have an annual average of 48% with Zehnder
blaupuma22 Jan 2018 00:48
With moisture recovery at 48%?

I currently live in a KfW 70 house without a ventilation or exhaust system.
I consistently have 35%.
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Baumfachmann
22 Jan 2018 01:05
Yes, it is possible, but it always depends on the individual situation. The issue with humidity is a bit complicated. You have the option to retrofit the heat exchanger with a humidity recovery function if needed. Many of my clients have managed without it. In my current house, I also retrofitted it—I previously had 27% humidity.
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Barossi
22 Jan 2018 07:23
I read that an enthalpy exchanger only works effectively if there is enough moisture generated. We are a household of three people, and the house is unoccupied during the day.

Best regards, Barossi
Mycraft22 Jan 2018 08:32
Well, if there is no moisture to recover, nothing can come from it. But the overall experience has been consistently positive.

I don’t think I have ever read anything negative about it or heard complaints from any homeowner.