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Arotherm Flow/ Pump Noise

Air Source Heat Pumps (ASHPs)

Last Post by trebor12345 25 minutes ago

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JamesChatz

(@james-chattaway)

New Member Member

Joined: 8 months ago

Posts: 1

Topic starter 13/10/2026 3:10 pm [#3192]

Hello all,

I’ve just had an arotherm 10kw installed in August and now the heating is on more consistently there is a noticeable flow noise coming from the airing cupboard, particularly around the filter

https://youtube.com/shorts/Yy7_KWTyUn4?is=VQxfoWkQzz4GhQYg

This is with no heating or hot water demand, just the pump circulating. There are AAVs in the highest point in the loft and have bled all radiators to no effect. House was repiped and there is no buffer tank or volumiser.

The installer is coming to have a look on Thursday but I wanted to get an idea on what is “normal” beforehand having come from an old gravity fed oil boiler.

Thanks!

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trebor12345

(@trebor12345)

Reputable Member Member

Joined: 3 years ago

Posts: 211

13/10/2026 4:03 pm

Posted by: @james-chattaway

↑

Hello all,

I’ve just had an arotherm 10kw installed in August and now the heating is on more consistently there is a noticeable flow noise coming from the airing cupboard, particularly around the filter

I had a 3.5Kw arotherm the installed earlier this year, so heating only been running 24/7 for the last week. I have no significant noise at all. I also have a mag filter.

2024 build bungalow, Southern England, 179 m2, 12w/m2
Underfloor heating, fully open
Vaillant aroTHERM plus 3.5kW
50 litre volumiser
3.6KW solar panels
Tesla 13.5kw Powerwall 3

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