Search with Wattson
Activity
 
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!

cathodeRay
cathodeRay
@cathoderay
Moderator
Famed Member
Joined: Feb 28, 2022
Last seen: Sep 10, 2026
Topics: 18 / Replies: 3024
Reply
RE: 14kW Midea ASHP in an old leaky building

@mookyfoo - Midea promote themselves as being value for money, based on economies of scale, they are a huge company. They also promote themselves on t...

4 years ago
Reply
RE: 14kW Midea ASHP in an old leaky building

@batalto - I think they may have photographed the board, they certainly photographed other parts of the system. I have to be mindful that if something...

4 years ago
Reply
RE: 14kW Midea ASHP in an old leaky building

@mookyfoo - two 16kW heat pumps is certainly plenty of redundancy in a house with a heat loss of around 13.5kW! If two are really necessary, one would...

4 years ago
Reply
RE: 14kW Midea ASHP in an old leaky building

@derek-m - I don't know the model of the PHE, only its's make (Secespol) which is on the foam insulating jacket, which can't be removed without damage...

4 years ago
Reply
RE: 14kW Midea ASHP in an old leaky building

1800 hours: bedroom 17.5 (vs 19) bathroom 20.0 (vs 22) kitchen 17.4 (vs 19). All have benefited from recent solar gain, especially bathroom and kitche...

4 years ago
Reply
RE: 14kW Midea ASHP in an old leaky building

@batalto - I'm currently on the standard Freedom weather com curve, 55@-2/37@15. Bumping up the top end will do even nastier things to my COPs and is ...

4 years ago
Reply
RE: 14kW Midea ASHP in an old leaky building

@batalto - my provisional conclusions are that the problem, or part of the problem, the PHE may also be partly to blame, is the nominal 14kW Midea hea...

4 years ago
Reply
RE: 14kW Midea ASHP in an old leaky building

@batalto - yes, in effect, I had my full room by room heat loss calcs from when I first designed installed the CH in the 1980s, and I also had the hea...

4 years ago
Reply
RE: 14kW Midea ASHP in an old leaky building

@kev-m - there are indeed many factors at work. I suspected a capacity problem at lower ambients because if you put the correct Midea capacity data (o...

4 years ago
Reply
RE: Name and shame heat pump installers that have done shoddy work

@saz - the Heat Loss Calculator worksheet isn't to bad, but it is complex, with a lot of detail needing to be entered, and it only needs one small typ...

4 years ago
Reply
RE: Name and shame heat pump installers that have done shoddy work

I have just posted a comment on my previous thread, to the effect that my heating system is not fit for purpose. But I don't blame my installer, who a...

4 years ago
Reply
RE: 14kW Midea ASHP in an old leaky building

At last a cold spell to test the heating and see whether it can cope - it can't. The nominally 14kW Midea ASHP is incapable of warming the house to de...

4 years ago
Page 249 / 254
Share:

SPONSORS

Join Us!

Installer Finder

Degrees of Separation

Latest Posts

SPONSORS

Click to access the login or register cheese
Protected By
Shield Security PRO