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Installer Fitted 9kW Instead of 11kW Heat Pump and Changed MCS Paperwork - What do I do?

 
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Air Source Heat Pumps (ASHPs)
Last Post by Mars 27 minutes ago
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Mars
 Mars
(@editor)
Illustrious Member Admin
Joined: 5 years ago
Posts: 3717
14/11/2025 3:42 pm  

@mairia, that reply to you (which you've just emailed me) is outrageous. Copy and paste reply that didn't tackle a single point. My private AI that I have trained gives me a better MCS reply than MCS's to you. They really are an incompetent, disgraceful organisation with no real purpose.


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 MairiA
(@mairia)
Trusted Member Member
Joined: 2 weeks ago
Posts: 35
Topic starter 14/11/2025 3:55 pm  

Posted by: @editor
↑

@mairia, that reply to you (which you've just emailed me) is outrageous. Copy and paste reply that didn't tackle a single point. My private AI that I have trained gives me a better MCS reply than MCS's to you. They really are an incompetent, disgraceful organisation with no real purpose.

That's certainly what it feels like. It did seem when I was filling in their online form that I was being steered towards contacting HIES instead so I'm not surprised by the response. I've emailed them back asking if they can give me a copy of the original heat loss calculation. And also any information about the timeline of issuing the changed MCS certificate and whether they have a position on installers altering certificates significantly some time after installation! I thought it would be useful to have this information if possible before approaching HIES. It feels like it's going to be a long process 😔

 



   
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Transparent
 Transparent
(@transparent)
Illustrious Member Moderator
Joined: 4 years ago
Posts: 2716
14/11/2025 4:43 pm  

@mairia  who is your MP?

This case hasn't yet progressed to the point where it would be useful to have an MP take action...
... but I'd like the chance to do some preparation in the background.

Thanks.


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Mars
 Mars
(@editor)
Illustrious Member Admin
Joined: 5 years ago
Posts: 3717
14/11/2025 4:52 pm  

Posted by: @transparent
↑

@mairia  who is your MP?

This case hasn't yet progressed to the point where it would be useful to have an MP take action...
... but I'd like the chance to do some preparation in the background.

Thanks.

I've always been curious about this direction. What additional "powers" does an MP have over a MCS, a consumer code or certification body? If these organisations don't act, I don't understand what the MP can do ignite them into action. 

 


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Mars
 Mars
(@editor)
Illustrious Member Admin
Joined: 5 years ago
Posts: 3717
14/11/2025 4:54 pm  

@mairia, the only useful (and correct) info is that MCS steered you to HIES. HIES claim to have a 'good' record of trying to correct issues. Let's see. I'll continue to watch the outcome of this saga.


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