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Last seen: Aug 25, 2026
@derek-m I take account of cop change due to flow temp change. I don't take account of the (generally second order and due to engineering not physics...
So far as I know that's about it. One thing I have found is that sometimes it helps to start by thinking about the emitters, or even the house, rath...
It does work harder, I have never said otherwise, and wouldn't do so because it would violate the laws of physics. I calculate the total energy suppl...
I have now had the time to have a better look at this model which I must say is very neatly laid out, congratulations. I have a couple of questions ...
True, but folding in variable oat before developing the basic theory is making it unnecessarily complex at an early stage and getting an idea based on...
@derek-m, @fazel thank you for your comments. I think I should start another thread on 'on/off' working, it doesn't really fit here.
@derek-m Thanks for this, very nicely set out and logical. I will have a play over the next days but it certainly looks like a great piece of work. ...
Possibly, but this time we can't afford the luxury of waiting for experience etc.
Yet you can install an oil boiler without planning consent but have to jump through loads of hoops to install a heat pump
@derek-m Understood! I've been thinking about the problem of assessing quantitatively the effect of on/off heating (eg when you switch it off ...
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...
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Degrees of Separation
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