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Last seen: Sep 23, 2026
@transparent If you do provide the link note that the topic begins on another tack (mostly to trigger discussion, partially because there might be som...
@transparent In another thread the following set of measures emerged (with a fair level of agreement) to open up the market and release MCS from its s...
I thought MCS was supposed to ensure that the industry has high standards, or at least that's what people keep telling me. Am I wrong or is it failin...
@batalto well that's scuppered the explanation I had in mind for why heat pumps are more efficient at low temperature than at high temperature, and wh...
Picture of a bottom discharge hopper wagon courtesy of Peco
Its not a bad analogy However the coal is offloaded at the radiators through the bottom of the truck, so the amount offloaded (deltaT) depends on...
Surely its more likely that @cathoderay adjusted his wc curve with the PHE in place, so the settings already take account of its effect. Of course, a...
I can certainly agree with that. I reckon that there are a fair few PhDs in 'optimised' control of heat pump central heating systems under various se...
Even a lossless PHE will reduce the system efficiency because the flow on the CH side is necessarily colder than the flow on the CH side and thus the ...
You are mixing up cause and effect. The heat delivered by the heat pump to the system absolutely is equal to (mass) flow rate * specific heat capacit...
@cathoderay Reading the above I think there is a large measure of agreement that the difference in operating conditions vs the oil boiler, and ...
One further comment occurs. We know that cycling is bad news, but we cant quantify how much effect this has when the unit is below minimum output. ...
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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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