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Last seen: Oct 26, 2026
Current (0915h) flow/return temps and top middle rear panel rad temps: Midea controller: Ambient: 7; LWT 47; RWT 41 PHE pipework: Primary in 45; p...
This gets complicated. Firstly there is the nominal output, as listed in the catalogues, usually at a delta t of 50. A correction factor then has to b...
@derke-m - Argghhh!!!! The forum has just deleted my reply. very frustrating. 'Something went wrong with your submission' or words to that effect, and...
@derek-m - OK, here are some minute by minute readings, col head abbreviations as before, csv text format. Ambient throughout was 5 degrees: Time,LW...
@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...
@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...
@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...
@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...
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...
@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 ...
@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...
@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...
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Latest Posts
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RE: The Changing Jet Stream Could Challenge UK Air Source Heat Pumps
@susannasaunders I'll set this up and start monito...
By Rob of York , 17 minutes ago
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Tradespeople on Their Phones: What’s Acceptable When They’re Working in Your Home?
I’m interested in where other homeowners draw the line ...
By Mars , 27 minutes ago
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RE: Electrical works for air to air heat pump
An electrician who signs off work is responsible for it...
By EtchedPixels , 6 hours ago
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RE: Are there any comparisons of DHW heat stores around?
@sarahemmm I have done things the opposite way round I ...
By Toodles , 6 hours ago
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RE: 15kw pump for 225m2 1990's house - over kill?
@seaviews I have read you latest response re buffer ...
By JamesPa , 1 day ago
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RE: How will removing the standing charge on gas bills benefit heat pumps?
The BUS grant funding for 2026/27 will run out at the c...
By Rob of York , 1 day ago
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@editor Ouch, sorry to re start the tick. I had assume...
By DavidB , 3 days ago
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RE: Say hello and introduce yourself
@e-a-west as the good Major said, welcome to the forums...
By Mars , 3 days ago
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RE: How much of your renewable and home setup would still work if the internet went down?
Yes I actually have a copy of a tool that whenever a ce...
By EtchedPixels , 4 days ago
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RE: Indevolt Batteries UK Support & Info Thread
@editor Hi, To resolve this, please tap on the A...
By Indevolt Tech , 4 days ago
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RE: Double or Triple Glazed Windows?
Posted by: @singlespeed With 9 years repairing windo...
By Rob of York , 4 days ago
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@transparent we’re still running a secure version of PH...
By Mars , 5 days ago
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RE: How quickly would you want/expect heat recovery to take from setback?
Much longer than that here. The heating isn't even on. ...
By bobflux , 5 days ago
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