Hi,
we have installed the above-mentioned ventilation unit in the basement. The shaft housing all the pipes and cables running from top to bottom (including those for the ventilation system) goes from the basement through the shower (ground floor) into the children’s room (top floor). In the shower and children’s room, the pipes are installed behind drywall. Sound silencers are installed in the basement. Now, in most rooms, the noise from the ventilation is barely audible, but in the children’s room, where the pipes are behind the drywall, it is quite loud. However, the noise does not come from the wall but from the ventilation outlet located in the floor.
Why is the noise louder there than, for example, in the bedroom or the other children’s room, where ventilation outlets in the floor are also installed? I cannot make sense of this – I would understand if it were generally loud, but in that particular children’s room, it is clearly louder.
Thank you in advance!
Regards,
StarAce
we have installed the above-mentioned ventilation unit in the basement. The shaft housing all the pipes and cables running from top to bottom (including those for the ventilation system) goes from the basement through the shower (ground floor) into the children’s room (top floor). In the shower and children’s room, the pipes are installed behind drywall. Sound silencers are installed in the basement. Now, in most rooms, the noise from the ventilation is barely audible, but in the children’s room, where the pipes are behind the drywall, it is quite loud. However, the noise does not come from the wall but from the ventilation outlet located in the floor.
Why is the noise louder there than, for example, in the bedroom or the other children’s room, where ventilation outlets in the floor are also installed? I cannot make sense of this – I would understand if it were generally loud, but in that particular children’s room, it is clearly louder.
Thank you in advance!
Regards,
StarAce
We have a similar problem. In the rooms with ducts, the ventilation system is clearly audible. However, for us, the noise definitely does not come from the outlets but from the duct itself. We have noticed that the sound gets refracted at the 90-degree bends where the riser transitions to the distribution ducts. This creates vibrations that are clearly audible in our case. Solution approach: The duct was filled with insulation material → it felt slightly quieter but didn’t really make a difference. Solution 2: Apply insulation material to the outside of the ducts and then add weight to prevent the duct from vibrating → slightly better.
We are not really satisfied with the ventilation system; it is too loud in the children’s room with the duct. However, we do not have the same unit installed as you.
The airflow is noticeable but depends on the volume of the rooms. Accordingly, the ventilation system and the outlets need to be adjusted.
Whether the noise is heard or not is very individual. My parents and my neighbor don’t hear anything in the children’s room. We hear it very loudly. Depending on who you ask, it can be considered quiet or loud.
We are not really satisfied with the ventilation system; it is too loud in the children’s room with the duct. However, we do not have the same unit installed as you.
The airflow is noticeable but depends on the volume of the rooms. Accordingly, the ventilation system and the outlets need to be adjusted.
Whether the noise is heard or not is very individual. My parents and my neighbor don’t hear anything in the children’s room. We hear it very loudly. Depending on who you ask, it can be considered quiet or loud.
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