Installing a heat pump without making acoustic calculations, with the certainty of meeting the noise standards that will be tightened in 2021 in the Dutch Building Decree. DHPS' HydroTop is the first and only system in the Netherlands with which heat pumps are guaranteed to meet noise standards, without the need for calculations to prove it. We will present the prefabricated roof solution at the Bouwbeurs in Utrecht in February 2023.
In April 2021, the Buildings Decree was amended. Noise standards for heat pump systems were tightened to a maximum of 40 dB at night and 45 dB during the day. Installers must demonstrate with a calculation that a system meets these noise requirements.
This is complex for many installers, so calculations are not always accurate or the process is outsourced externally. This can be costly and time-consuming. Thanks to the approval of Bureau of Verification Registration Equivalence (BCRG), DHPS' HydroTop does not require the acoustic calculation.
DHPS has two systems in its range for pitched roof slopes, including the in-roof type the HydroTop. The outer part of this - the patented ventilation hood - protrudes only ten to fifteen centimeters above the roof. The unit itself sits directly under the roof in a fully airtight and insulated housing, with insulation and vibration dampers which can be hung in the roof at lightning speed. Because the heat pump is safely and easily accessible through a large hatch in the house, service work can easily be carried out.
In consultation with DHPS, the BCRG has established an independent Board of Experts. This board tested the HydroTop (in combination with the two Panasonic air-water heat pumps most commonly used in series construction), resulting in a declaration that this combination falls within the noise standards as standard. If this statement is included with the building application for ground-level homes, a calculation is not required.
DHPS is the first and only supplier in the Netherlands that can provide this guarantee. Naturally, the HydroTop also has the BCRG quality declarations for space heating and tap water generation. There is now interest in the system from abroad.