Hello, next year I am building a KW40 solid construction house that includes a Milan ventilation system with heat recovery.
Now I would like to ask about your experiences with it.
I am somewhat concerned about dry air—do you have any insights or practical experiences?
Thank you very much
Now I would like to ask about your experiences with it.
I am somewhat concerned about dry air—do you have any insights or practical experiences?
Thank you very much
Of course, no one is forcing me.
I am looking for experiences from homeowners who have been living with a system for a longer period.
They mention 30-60% humidity as an optimal range; I found 45% for the winter (in summer, the value is naturally higher) to be a good target overall.
I am looking for experiences from homeowners who have been living with a system for a longer period.
They mention 30-60% humidity as an optimal range; I found 45% for the winter (in summer, the value is naturally higher) to be a good target overall.
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Bieber08153 Jan 2018 08:46So, 30% relative humidity would feel uncomfortable to many. The optimal range is generally considered to be between 40% and 60%.
We have a system with moisture recovery, and I find it very comfortable. I don’t see a risk of mold; the house is ventilated, and only part of the moisture is recovered, nothing accumulates. Heat recovery doesn’t actually make the house warmer—it just keeps it from getting as cold.
We have a system with moisture recovery, and I find it very comfortable. I don’t see a risk of mold; the house is ventilated, and only part of the moisture is recovered, nothing accumulates. Heat recovery doesn’t actually make the house warmer—it just keeps it from getting as cold.
Yes, you are in the right place here if you are looking for experiences spanning several years. Many people in the forum have installed ventilation systems.
And in winter, I mean actual winter, not the current outside conditions.
Are the 30% humidity levels actually a permanent condition without moisture recovery?
Except, as Alex mentions, if it is a 1-2 year-old house, there is still plenty of construction moisture present, but from around the third year onward, you will have very dry air and all that comes with it.
And in winter, I mean actual winter, not the current outside conditions.
Are the 30% humidity levels actually a permanent condition without moisture recovery?
Except, as Alex mentions, if it is a 1-2 year-old house, there is still plenty of construction moisture present, but from around the third year onward, you will have very dry air and all that comes with it.
Okay, I only read that the moisture return cannot be controlled, meaning the system always releases the same amount. Could this lead to excessively high indoor humidity?
For my situation, a Nilan Comfort 300 is included. Is it possible to purchase it with humidity recovery or retrofit it later? Does anyone know, and what would the additional costs be?
Or build without a ventilation system?
Then not Kf40 but Kf55 instead, or is a ventilation system already necessary there as well?
For my situation, a Nilan Comfort 300 is included. Is it possible to purchase it with humidity recovery or retrofit it later? Does anyone know, and what would the additional costs be?
Or build without a ventilation system?
Then not Kf40 but Kf55 instead, or is a ventilation system already necessary there as well?
It’s true that you can’t precisely control the amount, but enthalpy exchangers are not miracle devices. They can only absorb and release a certain portion of the moisture in the air.
So, the air is only slightly humidified when it enters dry.
This creates a healthy indoor climate while still dehumidifying.
The Nilan system does not offer an enthalpy exchanger. I would ask if they can provide an alternative. The additional cost is about 1000 euros.
Building without a mechanical ventilation system with heat recovery is even worse than without moisture recovery.
It’s your decision.
So, the air is only slightly humidified when it enters dry.
This creates a healthy indoor climate while still dehumidifying.
The Nilan system does not offer an enthalpy exchanger. I would ask if they can provide an alternative. The additional cost is about 1000 euros.
Building without a mechanical ventilation system with heat recovery is even worse than without moisture recovery.
It’s your decision.
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