In partnership with Arlow Plumbing & Heating
Are ASHPs noisy?
Somerset Heat Pump & Solar installer
Are ASHPs noisy?
Let’s talk about heat pump noise—because we know that’s a common concern!
Manufacturers list decibel (dB) ratings for their heat pumps, typically ranging from 54 to 66 dB. But here’s something to keep in mind—decibels are measured on a logarithmic scale, which means a 10 dB increase is actually twice as loud!
So, what does that mean for installation? Well, the size of the heat pump you need can have a big impact on where it can go.
This is where MCS020 comes in—a sound assessment that installers follow after calculating your heat loss and selecting the right unit. The goal? Making sure that, at the nearest neighbouring window to a habitable room, the heat pump isn’t louder than the background noise—which usually means a neighbor’s living room or bedroom.
To meet these guidelines, sometimes acoustic barriers are needed, like a solid fence. You could even get creative with a decorative trellis, as long as the heat pump isn’t visible through it. And let’s be honest—you might want screening for aesthetic reasons too!
Now, what about noise in your own home? A few smart choices can help:
– Install the unit away from bedrooms or other sensitive areas
– Use “quiet hours” settings to lower output overnight
– Consider carefully when mounting directly on walls, as this can cause vibrations
But here’s the reality—in most cases, heat pumps are pretty quiet. In fact, many customers tell us that when compared to a gas boiler flue, the heat pump is often quieter.
So, while noise is something to consider, it’s already built into the design process—and for most homes, it’s not an issue at all.

Compress 3400i AWS
Our 3400i AWS is available in 4, 6, 8 and 10kW outputs. Our quiet, space-saving outdoor units are suitable for renovation (building dependent) and new build projects providing a solution for maximising garden space.
£2000
Inc controls & system protection

Compress 2000 AWF
CS2000 AWF is an all-in-one full monobloc heat pump solution, built to speed up and simplify installation. With a space-saving footprint, it’s perfect for smaller outdoor spaces at just 2m2, suitable for renovations and new builds alike.
£2370
Inc controls & system protection

Compress 5800i AW
Designed for UK homes, the brand new CS5800i range is designed for new build and renovation projects alike – making it easier than ever to bring electrified home heating to your customers.
£2560
Inc controls & system protection