Which air heat pump meets the requirements of the development plan?

Hello everyone,

I am a bit desperate.
The development plan contains the following text:

Air heat pumps
Only the installation of air heat pumps that meet the following requirements is permitted:
The installation of air heat pumps is only allowed in fully enclosed rooms.
At all penetrations and openings from the installation room to the outside, it must be ensured by structural and/or technical measures that a sound pressure level of 30 dB(A), measured at 1 m distance from the penetration or opening, is not exceeded.
In the dimensioning and execution of sound insulation screens and silencers, it must generally be ensured that the noises after the silencer do not have tonal characteristics and that the installed technical devices, especially in the low-frequency range below 90 Hz, have sufficiently sound-damping properties.

The house provider has planned a Daikin Altherma 3R with the corresponding outdoor unit (ERGA04DAV3).
However, I am not quite sure if it can even achieve these sound pressure levels?

Maybe I just haven’t found the right data sheets yet?

Thanks and regards
Kristian

The sound level does not matter. You are not allowed to set up an external device, it says right there.

Hello Zaba12,

thank you very much for the quick response.
Nevertheless, breakthroughs and openings are also mentioned, right?

That means there are air heat pumps that are installed indoors and only require a breakthrough through the wall?
Does anyone have a good air heat pump they could recommend?

Thanks and regards
Kristian

Sure, somehow the cold has to be dissipated. I only know the Stiebel Eltron 504.

Hello, we have a Tecalor. However, they also belong to Stiebel Eltron.

Hello Kristian,

The house provider planned with a Daikin Altherma 3R with the corresponding outdoor unit (ERGA04DAV3).

you should urgently make sure that the house provider has the development plan and actually takes a look at it. It clearly says "NO outdoor unit". And they are planning with an outdoor unit?!? Does the rest of the house at least comply with the development plan? If they already overlook something like this, they might also plan a two-story city villa for you, while only flat-roof bungalows are permitted...

You now have the choice between an air/water heat pump with indoor installation (also available from Buderus and others) or a geothermal heat pump. (Ground probe or trench collector if the plot size permits).

Since air/water heat pumps with indoor installation are quite bulky and also rather expensive, I would take a very close look at the geothermal option. Often the drilling costs are initially off-putting, but the efficiencies are very good and heating will be cheap later on. And since you might additionally have to pay for soundproofing measures for the indoor unit, it could even be cheaper.

Very important: If you decide on an air/water heat pump, I would have the supplier / general contractor _guarantee_ in writing that it meets the required noise protection. Then they have to fix it later, not you at your own expense...

Best regards,

Andreas