Renewable Heating Hub Heat Pump Forums

Search with Wattson
Forums
Renewable Heating
Air Source Heat Pum...
Help me keep the fa...
 
Notifications
Clear all

Joining the Renewable Heating Hub forums is completely free and only takes a minute. By registering you’ll be able to ask questions, join discussions, follow topics you’re interested in, bookmark useful threads and receive notifications when someone replies. Non-registered members also do not have access to our AI features. When choosing your username, please note that it cannot be changed later, so we recommend avoiding brand or product names. Before registering, please take a moment to read the Forum Rules & Terms of Use so we can keep the community helpful, respectful and informative for everyone. Thanks for joining!

Help me keep the faith with my air source heat pump installation

 
Page 27 / 28
Air Source Heat Pumps (ASHPs)
Last Post by AdamK 3 weeks ago
327 Posts
18 Users
115 Reactions
96.3 K Views
RSS
 AdamK
(@adamk)
Reputable Member Member
Joined: 2 years ago
Posts: 226
Topic starter 05/06/2026 7:27 pm  

@jamespa asked my installer when these could be fitted and have had silence so far from the main two people in charge.



   
ReplyQuote
JamesPa
 JamesPa
(@jamespa)
Illustrious Member Moderator
Joined: 4 years ago
Posts: 5586
05/06/2026 7:40 pm  

Posted by: @adamk
↑

@jamespa asked my installer when these could be fitted and have had silence so far from the main two people in charge.

Keep the pressure up.  You need to be more nuisance to them than it costs to fix!

 


4kW peak of solar PV since 2011; EV and a 1930s house which has been partially renovated to improve its efficiency. 7kW Vaillant heat pump.


   
ReplyQuote
 AdamK
(@adamk)
Reputable Member Member
Joined: 2 years ago
Posts: 226
Topic starter 05/06/2026 7:54 pm  

@jamespa they are based about 50 mile away so probably don’t care now.



   
ReplyQuote
 AdamK
(@adamk)
Reputable Member Member
Joined: 2 years ago
Posts: 226
Topic starter 13/06/2026 10:33 am  

Still no reply.



   
ReplyQuote
 AdamK
(@adamk)
Reputable Member Member
Joined: 2 years ago
Posts: 226
Topic starter 13/06/2026 10:33 am  

Still no reply.



   
ReplyQuote
 AdamK
(@adamk)
Reputable Member Member
Joined: 2 years ago
Posts: 226
Topic starter 13/06/2026 10:34 am  

From the installer.



   
😢
1
ReplyQuote
 AdamK
(@adamk)
Reputable Member Member
Joined: 2 years ago
Posts: 226
Topic starter 13/06/2026 10:54 am  

@jamespa would you expect them to fit these free or pay? Also it worries me slightly that the manufacturer says they should last 5 years plus, would hope they don’t spilt and dump the heating water.

to be honest I still don’t know why Vaillant hasn’t been brought to task by someone over these noisy units.



   
ReplyQuote
JamesPa
 JamesPa
(@jamespa)
Illustrious Member Moderator
Joined: 4 years ago
Posts: 5586
13/06/2026 11:01 am  

Posted by: @adamk
↑

@jamespa would you expect them to fit these free or pay? Also it worries me slightly that the manufacturer says they should last 5 years plus, would hope they don’t spilt and dump the heating water.

to be honest I still don’t know why Vaillant hasn’t been brought to task by someone over these noisy units.

What exactly is it proposed to fit?

 


4kW peak of solar PV since 2011; EV and a 1930s house which has been partially renovated to improve its efficiency. 7kW Vaillant heat pump.


   
ReplyQuote
 AdamK
(@adamk)
Reputable Member Member
Joined: 2 years ago
Posts: 226
Topic starter 14/06/2026 1:26 am  

@jamespa these:

 



   
ReplyQuote
JamesPa
 JamesPa
(@jamespa)
Illustrious Member Moderator
Joined: 4 years ago
Posts: 5586
15/06/2026 1:26 pm  

Posted by: @adamk
↑

@jamespa would you expect them to fit these free or pay? Also it worries me slightly that the manufacturer says they should last 5 years plus, would hope they don’t spilt and dump the heating water.

to be honest I still don’t know why Vaillant hasn’t been brought to task by someone over these noisy units.

I didn't know about those, they look like good pieces of kit.

They are about £30 each https://www.flexej.co.uk/shop-category/pipe-expansion-bellows/rubber-bellows/flexej-epdm-union-ends/ plus VAT  It would be pretty mean IMHO of an installer not to do these for free.  There again I wouldnt spend a long time arguing so as a fallback, if they are really stubborn, they will surely provide the labour and a bit of insulation for free & you pay for the bellows.  OI guess they will also need a couple of adaptors, but they must use them a lot!

I imagine its worth feeling them every so often to detect possible failure before it occurs!


4kW peak of solar PV since 2011; EV and a 1930s house which has been partially renovated to improve its efficiency. 7kW Vaillant heat pump.


   
👍
1
ReplyQuote
 ASHP-BOBBA
(@ashp-bobba)
Prominent Member Member Professional+
Joined: 2 years ago
Posts: 503
15/06/2026 6:22 pm  

I would be interested to find out if others do this and it works, whats we found to overcome this issue in the past is to add additional shorter flex lines in the vertical, the issues seems to arise when you have a long vertical and this acts like a piano string carry the sound through the house a bit. there may also be a difference in the 7kw V other models as they dont all seem to have the same issue. 


AAC Group Ltd covering the Kent Area for design, supply and installation of ASHP systems, service and maintenance, diagnostics and repairs.


   
👍
1
ReplyQuote
 AdamK
(@adamk)
Reputable Member Member
Joined: 2 years ago
Posts: 226
Topic starter 24/06/2026 12:55 am  

Just wondering rather than the fudge fix is it worth going to the credit card company and getting Vaillant to sort it.



   
ReplyQuote
Page 27 / 28
Forum Jump:
  Previous Topic
Next Topic  

Currently viewing this topic 2 guests.

Share:

SPONSORS

Join Us!

Installer Finder

Degrees of Separation

Latest Posts

SPONSORS

Members Online

Click to access the login or register cheese
Protected By
Shield Security PRO