Forums

Forums
Renewable Heating
Air Source Heat Pum...
The good, the bad a...
 
Notifications
Clear all

The good, the bad and the not that great – my heat pump installation

 
Page 7 / 19
Air Source Heat Pumps (ASHPs)
Last Post by cathodeRay 2 months ago
224 Posts
15 Users
77 Reactions
24.7 K Views
RSS
Mars
 Mars
(@editor)
Illustrious Member Admin
Joined: 5 years ago
Posts: 3631
15/10/2024 9:24 pm  

@burtis did you find out if your installation is registered with HIES or RECC (consumer codes)?


Get a copy of The Ultimate Guide to Heat Pumps

Subscribe and follow our Homeowners’ Q&A heat pump podcast


   
ReplyQuote
Burtis
 Burtis
(@burtis)
Reputable Member Member
Joined: 1 year ago
Posts: 109
Topic starter 15/10/2024 9:36 pm  

@editor 

HIES buddy



   
👍
1
ReplyQuote
Mars
 Mars
(@editor)
Illustrious Member Admin
Joined: 5 years ago
Posts: 3631
15/10/2024 9:55 pm  

@burtis interesting. Have you also filed a case with them?


Get a copy of The Ultimate Guide to Heat Pumps

Subscribe and follow our Homeowners’ Q&A heat pump podcast


   
ReplyQuote
Burtis
 Burtis
(@burtis)
Reputable Member Member
Joined: 1 year ago
Posts: 109
Topic starter 16/10/2024 12:53 am  

Small update. 

I found that most of the locksheilds for the radiators in the kitchen, downstairs bathroom and connecting space were near completely shut off. We haven't touched these 

I have since opened these but no noticeable noise difference. Still the same high pitch humming from circulation pump 

Buffer tank has a auto bleed valve on the top it appears this has been leaking so presumably it is faulty no big issue I do have a spare.

MCS have forwarded the complaint on to NAPIT by the way



   
ReplyQuote
Burtis
 Burtis
(@burtis)
Reputable Member Member
Joined: 1 year ago
Posts: 109
Topic starter 16/10/2024 7:13 am  

@editor 

I did call HIES and they said to exhaust all other avenues first.



   
ReplyQuote
 JamesPa
(@jamespa)
Illustrious Member Moderator
Joined: 3 years ago
Posts: 3196
16/10/2024 7:18 am  

Posted by: @burtis
↑

I found that most of the locksheilds for the radiators in the kitchen, downstairs bathroom and connecting space were near completely shut off. We haven't touched these 

That may (or may not) not be significant.  Many lockshields have only a tiny adjustment range ie they need to be almost 'off' to have any affect at all.  See heat geek videos/guides on balancing and particularly pay attention to 'valve authority' for further explanation.

 


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



Mars
 Mars
(@editor)
Illustrious Member Admin
Joined: 5 years ago
Posts: 3631
16/10/2024 7:19 am  

@burtis again, very interesting because this contrary to all “advice” I’ve received.


Get a copy of The Ultimate Guide to Heat Pumps

Subscribe and follow our Homeowners’ Q&A heat pump podcast


   
ReplyQuote
Burtis
 Burtis
(@burtis)
Reputable Member Member
Joined: 1 year ago
Posts: 109
Topic starter 17/10/2024 7:05 am  

@jamespa 

Ah yeah I have seen this they were left screwed pretty far down so possibly part of the problem. 

System seems to run a little more efficiently now less cycling on and off 🤔 but hard to tell as Midea app isnt very good so going off Octopus consumption graph could just be placebo effect though as outside temperatures have risen 



   
ReplyQuote
Transparent
 Transparent
(@transparent)
Illustrious Member Moderator
Joined: 4 years ago
Posts: 2655
17/10/2024 8:22 am  

Hmm; well that's a fairly consistent approach.

The installers seem to have screwed both the lockshields
and their customer ...


Save energy... recycle electrons!


   
ReplyQuote
Burtis
 Burtis
(@burtis)
Reputable Member Member
Joined: 1 year ago
Posts: 109
Topic starter 17/10/2024 8:43 am  

Also regarding noise from the unit itself on the wall bracket yes I expect some noise from it as is the nature of a wall bracket but there seems to be a lot of noise transfer when hot water is ramping up obviously as it's working harder and a lot of it is transferred to the wall. 

So hopefully they will sort those mounts out for something a bit more suitable. 

I did see in the document on MCS checklist that they ticked the box of where it states Anti Vibration mounts used it says 'None'



   
ReplyQuote
Burtis
 Burtis
(@burtis)
Reputable Member Member
Joined: 1 year ago
Posts: 109
Topic starter 17/10/2024 8:50 am  

Another point worth mentioning is the lack of a soak away. 

They just removed 3 slabs under the unit and put some gravel down unsure this is any good 



   
ReplyQuote
Transparent
 Transparent
(@transparent)
Illustrious Member Moderator
Joined: 4 years ago
Posts: 2655
17/10/2024 9:34 am  

The anti-vibration mounts being referred to on a checklist could be heavy rubber 'feet' beneath the outside unit.
Building Regs Part-L puts the onus on the installer to create the Commissioning Checks.
Using a 'standard' MCS form without stating what mounts are being referred to is clearly inadequate.

Part L8a

 

To test whether condensate drainage will be adequate, the installer may have poured a bucket of water onto the ground.
If so, then that too should form part of the Commissioning checklist.

You could do this yourself.
Use two buckets of water, 15mins apart, on the slab below the heat-pump.

If the second bucket leaves water above the gravel layer, then you can assume that would create an ice-covered surface in winter.


Save energy... recycle electrons!


   
ReplyQuote



Page 7 / 19
Forum Jump:
  Previous Topic
Next Topic  
Share:

Join Us!

Podcast Picks

Latest Posts

Click to access the login or register cheese
x Powerful Protection for WordPress, from Shield Security
This Site Is Protected By
ShieldPRO →