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MairiA
@mairia
Member
Trusted Member
Joined: Nov 3, 2025
Last seen: Nov 19, 2025
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?

Further update. I did send complaints to HIES and NAPIT. I'm not really clear what the role of NAPIT is over and above that of MCS and HIES, MCS said ...

1 week ago
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RE: Installer Fitted 9kW Instead of 11kW Heat Pump and Changed MCS Paperwork - What do I do?

My MP is Dr Zubir Ahmed, Labour, Glasgow South West. And this is the reply from MCS to my follow up query about the original heat loss calculation a...

2 weeks ago
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RE: Installer Fitted 9kW Instead of 11kW Heat Pump and Changed MCS Paperwork - What do I do?

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...

2 weeks ago
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RE: Installer Fitted 9kW Instead of 11kW Heat Pump and Changed MCS Paperwork - What do I do?

Yes pretty much! Their response came in earlier today, not personalised at all to my situation - "Thank you for getting in touch.I am sorry to hear...

2 weeks ago
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RE: Installer Fitted 9kW Instead of 11kW Heat Pump and Changed MCS Paperwork - What do I do?

@transparent yes I'm sure I could do that. I can cut it outside and wear a mask so hopefully no concern about dust. I had a Google about ventilation i...

2 weeks ago
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RE: Installer Fitted 9kW Instead of 11kW Heat Pump and Changed MCS Paperwork - What do I do?

@transparent I feel a lot of the information from the installer in their replies has been 'fudge' and doesn't really clarify anything for me, or indic...

2 weeks ago
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RE: Installer Fitted 9kW Instead of 11kW Heat Pump and Changed MCS Paperwork - What do I do?

@jamespa again really useful, thank you so much. Temperatures tomorrow are forecast for 5-6 degrees during the day, 8 degrees the day after so I'll lo...

2 weeks ago
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RE: Installer Fitted 9kW Instead of 11kW Heat Pump and Changed MCS Paperwork - What do I do?

@toodles yes I am relying on the Daikin data from the MMI, and have heard before that they are less than reliable. The video you shared gives a really...

2 weeks ago
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RE: Installer Fitted 9kW Instead of 11kW Heat Pump and Changed MCS Paperwork - What do I do?

@jamespa thank you. The unit is a EDLA09DA3V3. Refrigerant is R32. SCOP on the MCS certificate is 3.6, on the heat loss calculation for space heating ...

2 weeks ago
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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'll take a look at those links and see if I can work it out. You might be entertained to know that there are 2 more vents in ...

2 weeks ago
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RE: Installer Fitted 9kW Instead of 11kW Heat Pump and Changed MCS Paperwork - What do I do?

@transparent yes it's an air vent. The side wall of the integrated garage there is an external wall. The rear and opposite side walls are shared with ...

2 weeks ago
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