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Last seen: Oct 26, 2026
It's a fair question There are two approaches to answering it I can think of. 1. Measure the flow-flow temperature drop across the llh. For each...
Going back one step, what's the llh there for? Buffers of a sufficient size correctly plumbed can be made to work (as in not materially compromise p...
Well said! I (and I suspect many others) have met a fair few installers who don't seem to accept this!
Given that my advice is be patient. If you haven't already, get your system set up so that it should work well as the designers intended it to. That ...
Interesting, is this to get the house temp right or just the flow temp. Intuitively would have thought that the latter should be quite straightforwar...
Its not at all likely that cranking up the flow temperature to reduce the output of the heat pump is an efficient way to operate (unless of course you...
Interesting. It is of course in principle equally valid (although presumably achieved in practice by turning the 'wick' up or down to change LW...
Posted by: @derek-m ↑ The heat pump merely tries to supply sufficient energy to meet the demand. Yes. My view is simple, to think ...
As others have said 2 18kW units sounds like a massive overkill, even allowing for the overstated outputs. Someone suggested 2 16kW Mideas (which hav...
I would guess electronics 25-50W, pump 30-50W each. Fan is probably most of the rest. The electronics won't switch off during setback and there may ...
Presumably fan speed (and thus power drain) varies with compressor speed. I believe you said that your pump speed is constant and thus power consumpt...
I think a lot of people expect gas boilers to heat instantly, witness the prevelance of whacking the thermostat to max because they think this will so...
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Degrees of Separation
Latest Posts
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RE: Tradespeople on Their Phones: What’s Acceptable When They’re Working in Your Home?
I know most of the folks I use pretty well so I'm fairl...
By EtchedPixels , 2 hours ago
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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 , 3 hours 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 , 8 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 , 8 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 , 2 days 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 , 5 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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