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    Insulating a heat pump or swimming pool pump

    Annoyed by the sound of a heat pump, swimming pool pump, or another pump in your surroundings? A well-designed enclosure can make a difference, but building one requires the right approach. It is important not only to minimise the noise but also to ensure that the pump continues to function optimally.  Read here step by step how to create an effective enclosure that muffles sound without disrupting the operation of the pump.

    Build a casing for your pump

    To reduce the sound of a pump, you can build a cabinet around the pump. This will reduce the noise, but keep in mind that no enclosure can completely block noise.  

    Housing: the foundation of sound reduction

    The choice of material for the enclosure is important. The heavier the material, the better sound is attenuated. For example, concrete dampens more sound than stone. For a sturdy and effective enclosure, we recommend using at least 18 mm weather-resistant plywood. 

    Important points of attention:

    • Ensure a tight installation without gaps to prevent sound leaks. Use good gap sealing at connections and on the floor. 
    • Leave sufficient space around the pump, preferably 25-30 cm, to allow air to circulate freely. Extra space is needed for ventilation at the shorter sides. 

    Damped ventilation for optimal air circulation

    A pump needs cool air to dissipate its heat. To combine this with sound insulation, a sound-damped passage is essential. For this, place a partition on the inside at both short sides of the housing. 

    Here's how it works:

    • Make the openings for air intake and exhaust approximately ⅓ of the height of the housing. 
    • Ensure that the partition on the inside is ⅔ of the height. 
    • Cover the entire inside of the ventilation with sound-absorbing material. 

    Adding sound absorption

    Once the pump is in the housing, the sound may reflect inside the cabinet. To prevent this and to improve sound reduction, you should line the inside of the housing with sound-absorbing material at least 40 mm thick. We recommend using EASYfoam FireSeal, or EASYfoam PU.

    Need advice?

    With a carefully constructed casing, you can significantly reduce the noise from your pump. By combining the right materials, muted ventilation, and sound absorption, you create an effective solution. Do you have any questions or would you like professional advice? Please feel free to contact us, we are happy to help!