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Last seen: Sep 23, 2026
I think that there are broadly two main use cases of interest namely 'in all day' and 'out all day'. Obviously this ignores more complex shift patter...
I think this is easily made intuitive by considering the limit situation, namely a building with zero thermal mass. In such a building it's obvious t...
Good question! The total used over the year will be the sum (mathematically the integral) of the instantaneous, so on this interpretation they are s...
A deceptively simple and important question but not actually that easy to calculate (for the avoidance of doubt I don't think the previous answer was ...
Science advances through a combination of theory and experiment. True also with engineering. Fitting an equation (to experimental data) is only one ...
Sorry, I wont be doing this because tariffs change all the time. But... if night time set back saves 10-20%, but you can somehow store energy at 20%...
I assume a COP of 4 at the starting conditions (but you can adjust the value in the spreadsheet). In the forced recovery model the FT changes so the ...
@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...
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Degrees of Separation
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@mrkfm, I’m definitely not trying to put anyone off get...
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RE: Why are ASHP installs so expensive?
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