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Last seen: Oct 27, 2026
With an OAT of 5C which is what the graphs say you have, you would indeed expect that or better. Remember that cycling occurs when the heat pump cant...
I find that with weather forecasts you need to be careful how you 'read' them. For example a '30% probability of rain' could be because you are edge ...
"Can you define "Short Cycling"? Is this short Cycling , acceptable , during April , during the prime Short cycling month of April?" Unfortuna...
@derek-m Thanks, that would be much appreciated!
There are various online calculators for flow and pressure. Temperature loss in pipes should be either negligible or within the insulated envelope o...
Personally I both play with models (railways) and work with them. Experiment and theory complement each other. and modelling is not a modern obsessi...
Yes but this reduces the remaining voltage (pump head) available not the current (flow). And friction losses don't cause a temperature drop they cau...
Sorry but the analogy doesn't work. Pipes convey heat from one end to another according to your equation, they don't dissipate it according to this e...
In the analogy you are trying to draw, the voltage is the pump head (pressure) not the water temperature. The flow rate is the current and the impeda...
If you haven't already you might want to re-read my earlier post which has a link to a worked example of spatial zoning and draws some analogies betw...
Are you certain of 6.5C, Have you checked the actual temperature at the output of the Samsung?. If so, are the pipes insulated and are the flow rates...
Im not sure how helpful the analogy is. The key point is that the buffer is (at DC) most probably a relatively low impedance path compared to the hea...
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Degrees of Separation
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RE: Tradespeople on Their Phones: What’s Acceptable When They’re Working in Your Home?
Actually, that's a very important point. I've only ev...
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RE: The Changing Jet Stream Could Challenge UK Air Source Heat Pumps
@susannasaunders can I just add to @rob-of-york s comm...
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RE: Aerotherm and weather compensation
These are likely inked. The basic explanation is tha...
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RE: Electrical works for air to air heat pump
agree with above. I have not had extra costs added wh...
By Batpred , 19 hours ago
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Good to hear that you found a solution. Absolutely a...
By Batpred , 19 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 , 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...
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RE: Say hello and introduce yourself
@e-a-west as the good Major said, welcome to the forums...
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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...
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RE: Indevolt Batteries UK Support & Info Thread
@editor Hi, To resolve this, please tap on the A...
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