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Last seen: Oct 19, 2026
@CBrenewable A COP of 2.4 is definitely low and you are right to be concerned. You should be seeing 4 or better at present. Can you tell us s...
Have you got the loss calculations, if so perhaps you could post?
The output of a rad is proportional to DT to the power 1.3, where DT is the average temperature difference between rad and room. At a flow temperatu...
Just to clarify this was a serious question, its going to be easier to explain your observations above if you have plots. If you dont then just say a...
Ok on second thoughts scrub the questions. Id be tempted to optimise the rads as previously described. If you find that this results in a rad curve ...
Ok. When you say max 50 what changes it? Does it in practice run at 50 and if so does the zone valve switch it on and off? Basically I'm trying to...
@rhh2348 have you got graphs to illustrate this, if so can you post them please (or were you sitting and watching?)
@tomdad How is it all connected/controlled. The heat pump can only produce water at one temperature at any one time, so either it's all running at...
Yes. Just find any radiator catalogue eg myson or stelrad and look it up. This will give you W at a DT of 50C between flow temp and room. To conver...
The radiator output at any given ft will increase if the radiator is larger. So larger rads will translate to lower ft (for the same house temperatur...
@tomdad Here is some more detail. Firstly your heat pump is capable of operating at 55 or 35 or anywhere in between and indeed for a bit either si...
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RE: How should the Boiler Upgrade Scheme be reformed?
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RE: Heat Geek installations: share your experiences
one thing i learnt from reading people’s comments and e...
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RE: Cooling/heating with one unit
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
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RE: Heat pump branding. Clever, contemporary… or a bit too much?
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@bobflux Thank you for your response. I am trying to ...
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Bufferless design & control of Chinese air to water monoblock hybrid heat pump in Alberta, Canada
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The installer visited yesterday and suggested the noise...
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