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Last seen: Sep 22, 2026
I have no idea how to account for this other than the obvious observation that it is likely to compromise hp performance. I'm not sure I'd describe...
I have no idea how to account for this other than the obvious observation that it is likely to compromise hp performance. I'm not sure I'd describe...
I think you missed the point. While the control period covers almost all the setback range of OAT, it a) has very few data points in much of that ra...
Interesting. It could be standing load or minimum possible output even with cycling (because it probably turns on every so often just to get a sense ...
Not really. The fact that the equation of best fit has a constant in it a fact, and without extrapolation it still means that the data points we actu...
I would have reached the same conclusion except that the scattergram of corrected IAT-OAT vs energy out (corrected for the thermal mass of the fabric)...
We are all doing this part time! Scatter plots of IAT vs heating energy out and IAT - OAT vs heating energy out suggest 8.5kW at -2/20 and with a va...
@derek-m @cathoderay OK, I think I may be getting some ideas, its by no means fully there but its going in the right direction, I think. I think...
@cathoderay @derek-m Health warning: This post doesn't contain any conclusions, just some more observations to trigger thought, pursuant to the overri...
I don't know is the simple answer. In my own mind I was thinking of two (practical) regimes, a 24 hour cycle and a 2 week holiday. But of course peo...
OK so here are some observations to ponder, in no particular order, and with no particular agenda (other than to try to explain the observations) ...
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Degrees of Separation
Latest Posts
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RE: Cooling using an air to water heat pump
@jamespa thanks. im not used to being on a forum where...
By mrkfm , 32 minutes ago
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@jamespa Thanks. this is very helpful. It's actually t...
By mrkfm , 2 hours ago
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RE: Passiv Smart Thermostat - Help & Forum Support
Is there any expected time frame for an update to be ab...
By Singlespeed , 3 hours ago
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RE: Why are ASHP installs so expensive?
Posted by: @springswood I confess to becoming a litt...
By Rob of York , 4 hours ago
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Analysis of the economics of switching to an A2W ASHP compared to other heat sources
This post aims to analyse the economics of installing, ...
By Rob of York , 8 hours ago
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RE: Cooling with air to water heat pumps
@editor does that mean you have to have two separate ex...
By mrkfm , 23 hours ago
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RE: Starting Our Heat Pump Journey: 1962 build 3 bed detached house
Posted by: @ian-s Could always use the money saved o...
By Rob of York , 1 day ago
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Depends on what controls the pump! Thats the whole poi...
By JamesPa , 1 day ago
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The positive reviews keep coming in for Britain's Heat ...
By Mars , 2 days ago
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RE: Next steps on my ASHP journey: Radiators and Pipework
I have one of these fitted which also allows you to reg...
By Old_Scientist , 2 days ago
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RE: Recommendations in Ely (Cambs) area for Full setup checks on Nibe HP setup for House.
If they can't don't give up. Heat pumps are, in reali...
By JamesPa , 3 days ago
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RE: Missing flow temperature in Heat Geek proposal
Yes that's what would happen by turning down the lsv to...
By JamesPa , 3 days ago
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RE: Grant R290 DHW Cycle Interuption
It looks like some sort of short pre-run. The question...
By JamesPa , 3 days ago
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RE: Cascade System or larger single unit
@renewables345 I would say if it a new build it’s no mo...
By Aventus Eco , 3 days ago
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