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MairiA
@mairia
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Joined: Nov 3, 2025
Last seen: Nov 19, 2025
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Topics: 1 / Replies: 36
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RE: Installer Fitted 9kW Instead of 11kW Heat Pump and Changed MCS Paperwork - What do I do?

@transparent thank you, I will add that to my to do list. Have you any thoughts what I might hope for as an outcome if the unit installed is actually ...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Installer Fitted 9kW Instead of 11kW Heat Pump and Changed MCS Paperwork - What do I do?

@toodles good to know. I really dislike the MMI. I find it very awkward to use, have to go in to my garage to take readings and adjust settings, don't...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Installer Fitted 9kW Instead of 11kW Heat Pump and Changed MCS Paperwork - What do I do?

@toodles that's a really useful thought, I will check them

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Installer Fitted 9kW Instead of 11kW Heat Pump and Changed MCS Paperwork - What do I do?

And I'll contact MCS, I didn't realise they would have a copy of the heat loss document. Also can I say thank you so much to all have responded so hel...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Installer Fitted 9kW Instead of 11kW Heat Pump and Changed MCS Paperwork - What do I do?

@editor for the benefit of others, the company involved is Flo Renewables in Glasgow. I should say I was very happy with the initial installation proc...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Installer Fitted 9kW Instead of 11kW Heat Pump and Changed MCS Paperwork - What do I do?

@jamespa that's a good point about not offsetting overnight when it's very cold. And yes that was an example of it not getting to temperature. I do ha...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Installer Fitted 9kW Instead of 11kW Heat Pump and Changed MCS Paperwork - What do I do?

@jamespa I did pore over all the documentation I have, and was definitely not given a copy of the heat loss calculation. I do have an initial one done...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Installer Fitted 9kW Instead of 11kW Heat Pump and Changed MCS Paperwork - What do I do?

@editor I'll email that detail to you, I'm wary of seeming malicious. But if it's helpful for others I am happy to name the company in the forum, I do...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Installer Fitted 9kW Instead of 11kW Heat Pump and Changed MCS Paperwork - What do I do?

@jamespa this is my thinking at the moment. I will be glad not to have to deal with the installer again!

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Installer Fitted 9kW Instead of 11kW Heat Pump and Changed MCS Paperwork - What do I do?

@majordennisbloodnok The installer's reply to that query was "There is indeed a £97 difference between the two units. However, when we purchased your ...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Installer Fitted 9kW Instead of 11kW Heat Pump and Changed MCS Paperwork - What do I do?

@editor thank, it's good to have validation of how I feel, the installer was really downplaying my concerns.

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Installer Fitted 9kW Instead of 11kW Heat Pump and Changed MCS Paperwork - What do I do?

@jamespa thank you for replying so quickly. SCOP has been running around 2.7 for the past 10 months, the best it has been in the early days was 3.2, m...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
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