When installing air source heat pumps (ASHPs), especially in urban or noise-sensitive areas, selecting a unit with low operational noise is crucial. Below is a comparison of popular ASHP models based on their sound levels to assist in making informed decisions.
Installer Tips: What Affects Heat Pump Noise on Site
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Property insulation matters – Well-insulated homes reduce heat pump workload, meaning quieter operation. Poor insulation = higher noise due to harder run times.
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Correct placement is crucial – Avoid walls near bedrooms or tight corners that reflect sound. Follow clearance guidelines.
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Mounting matters – Use anti-vibration pads or brackets. Bad mounting can amplify sound.
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Check sound pressure, not just power – Planning permission is based on how loud it is at the boundary (sound pressure), not total output.
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Enable Quiet/Night Mode – Some models support this but need activating during setup.
Best Heat Pumps for noise sensitive installations
| Model | Sound Pressure Level (dB(A)) | Sound Power Level (dB(A)) | Notes |
|---|---|---|---|
| LG Therma V R32 Monobloc | 32 (Low Noise Mode) | Not specified | Exceptionally quiet; ideal for noise-sensitive installations. |
| Samsung EHS Mono R290 Gen7 | 35–41 | 55–60 | Features advanced noise-reduction technologies. |
| Mitsubishi Ecodan R32 Ultra Quiet | 45 | 58 | Designed to meet permitted development noise standards. |
| Vaillant aroTHERM Plus | 49 (at 1m) | 54 | Quiet Mark certified; suitable for residential areas. |
| Grant Aerona³ R32 | 49.8–54.2 (at 1m) | 60.8–65.2 | Quiet Mark certified; robust performance. |
Model Highlights
LG Therma V R32 Monobloc
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Sound Pressure Level: 32 dB(A) in Low Noise Mode
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Ideal For: Installations where minimal noise is paramount.
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Features: Advanced noise-reduction design; suitable for urban settings.
Samsung EHS Mono R290 Gen7
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Sound Pressure Level: 35–41 dB(A)
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Ideal For: Residential areas requiring quiet operation.
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Features: Incorporates innovative noise-reducing technologies.Mitsubishi Ecodan R32 Ultra Quiet
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Sound Pressure Level: 45 dB(A)
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Ideal For: Properties where compliance with noise regulations is essential.
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Features: Meets permitted development noise standards.
Vaillant aroTHERM Plus
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Sound Pressure Level: 49 dB(A) at 1 meter
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Ideal For: Homes in close proximity to neighbors.
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Features: Quiet Mark certified; high efficiency.
Grant Aerona³ R32
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Sound Pressure Level: 49.8–54.2 dB(A) at 1 meter
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Ideal For: Rural or semi-urban installations.
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Features: Quiet Mark certified; durable and reliable.
Advice For Installers
Selecting the right ASHP involves balancing performance with noise considerations. For ultra-quiet operation, the LG Therma V R32 Monobloc stands out, while the Samsung EHS Mono R290 Gen7 offers a blend of efficiency and low noise. The Mitsubishi Ecodan R32 Ultra Quiet, Vaillant aroTHERM Plus, and Grant Aerona³ R32 also provide commendable quiet performance suitable for various settings.
For assistance in choosing the most appropriate heat pump for your specific installation needs, contact UK Renewable Supplies. We offer expert advice, competitive pricing, and prompt delivery to ensure your projects run smoothly.
Talk To UK Renewable Supplies
At UK Renewable Supplies, we don’t just stock the quietest heat pumps on the market, we also help installers choose the right model for the property and advise on best practices for noise-sensitive installs. Need guidance? Our team’s here to help