Forums

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!

MairiA

@mairia

Member

Trusted Member

Joined: Nov 3, 2025
Last seen: Mar 23, 2026

Topics: 1 / Replies: 45

AllTopicsReplies

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

No problem, I'll get that done. Many thanks

5 months ago

Forum

Air Source Heat Pumps (ASHPs)

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...

5 months ago

Forum

Air Source Heat Pumps (ASHPs)

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...

5 months ago

Forum

Air Source Heat Pumps (ASHPs)

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...

5 months ago

Forum

Air Source Heat Pumps (ASHPs)

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...

5 months ago

Forum

Air Source Heat Pumps (ASHPs)

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...

5 months ago

Forum

Air Source Heat Pumps (ASHPs)

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 ...

5 months ago

Forum

Air Source Heat Pumps (ASHPs)

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 ...

5 months ago

Forum

Air Source Heat Pumps (ASHPs)

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 ...

5 months ago

Forum

Air Source Heat Pumps (ASHPs)

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

@jamespa yes that all makes sense, a really useful plan. I'll cancel the setback now as I see increasingly cold weather forecast, -1 overnight and lig...

5 months ago

Forum

Air Source Heat Pumps (ASHPs)

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

Actually I've double checked my current heat curve settings and the LWT seems pretty much correct for the outside temperatures.

5 months ago

Forum

Air Source Heat Pumps (ASHPs)

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

@editor will do 👍

5 months ago

Forum