ᐅ Noise level of heat pump – experiences?

Hello,
we have now received the first quote for a ground source heat pump. It is a Waterkotte heat pump, model AI1QE.
I have read that the heat pump has a sound power level of 48 dB(A), which seems quite high to me. Since we don’t have a basement, the heat pump will be installed in the utility room on the ground floor. I want to avoid hearing the heat pump, especially in the living room and also at night in the bedrooms.

What are your experiences with your heat pumps, particularly when they are located on the ground floor? I am also open to alternatives to the heat pump offered to us.

Regards

Nordanney

Hello,

Design values Lr in dB(A) at night (9:00 PM to 7:00 AM)

Residential areas (SL II) 45
Mixed-use areas (SL III) 50

Assessment level Lr,H in dB(A)
Night (10:00 PM to 6:00 AM)
Minimum requirement 30
Increased requirement 25

best regards

Husmann Sachverständigenbüro

HausbauBlog schrieb:

Over the winter, we gained a bit of experience with it. As mentioned, the unit is located right next to the living room, and we only hear it if we really listen carefully when the house is completely quiet and the pump is running at full power. Otherwise, we hardly hear it or not at all, and we are very satisfied with it.

Thanks, that actually sounds much better in real life than I had feared.

That is exactly why I am not so enthusiastic about heat pumps.

(Well, 48dB(A) is twice as loud as an expensive, quiet refrigerator, but the unit is not located in the kitchen or living room—it is in an adjacent room. Therefore, I don’t think it is a problem. Gas or other heating systems also produce sounds—for example, almost every heating system (except the now outdated electric underfloor heating) has an electric motor running to circulate water or air.)