Disclaimer
This calculation tool is developed as an aid to make an indicative calculation of the noise level of an outdoor unit (heat pump or air conditioning) at the property boundary, in accordance with the method described in the manual of the WPAC-geluid V2020_0 tool, commissioned by the Dutch Ministry of the Interior and Kingdom Relations.
Not a substitute for professional advice
The results of this tool are indicative and should not be considered as a definitive assessment or official acoustic report. For a formal assessment against the Dutch Besluit bouwwerken leefomgeving (Bbl, articles 4.107(2) and 4.108(3) — formerly Building Decree 2012), an on-site measurement should be performed or an acoustic consultancy firm should be engaged.
Limitations
- Rectangular properties and buildings only
- Single outdoor unit (no cumulation of multiple units)
- No directional sound radiation modelling
- No frequency-dependent calculation (single LwA value)
- Simplified reflection and screening calculation
- No meteorological conditions accounted for
Liability
The creators of this tool accept no liability for damage resulting from the use of the calculated results. Use of this tool is entirely at your own risk. The user is responsible for verifying the results and engaging expert advice where necessary.
Legal framework
The legal requirements are set out in the Dutch Besluit bouwwerken leefomgeving (Bbl), articles 4.107(2) and 4.108(3) (formerly Building Decree 2012, articles 3.8(2) and 3.9(3)), and the accompanying Omgevingsregeling. The limit values are:
Intellectual property
The calculation method is based on the WPAC-geluid V2020_0 tool, commissioned by the Dutch Ministry of the Interior and Kingdom Relations (BZK).
Changes
We reserve the right to modify this tool and these terms at any time without prior notice.
Last updated: June 2026