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Last seen: Sep 23, 2026
Well for certain not running 24 hrs can be more expensive: Consider a house with very high thermal mass, so high that it barely responds to setbacks...
I have always assumed that they modulate continuously between max and min. Obviously you can only provide the engineering data at a limited number of...
Id be a bit careful with the interpretation of this. If the house only cools by 1C peak (ie an average of 0.5C) for 12 hrs when it's 0 outside then a...
There is a bit more of a quote from the report and its author here The Daily Mail and the Telegraph seem to be responsible for some of the report...
Sorry but that's a bit meaningless as a statement. Too loud in what circumstances? Clearly there are circumstances where they are not too loud eg my...
Very easily. 1m from the boundary is not the same as 1m from an assessment point. The heat pump could be 20m down the garden and right on the bounda...
There are arguments both ways on this and each has its following. Glycol has a higher viscosity and a lower heat capacity than water so may slightly ...
AFAIK they all do have frost protection built in, just like fossil fuel boilers. It should override any set back (again just like fossil fuel boilers...
Unfortunately most heat pumps are either a) direct descendants of air conditioners originally designed to cool or b) not designed for a mild but damp ...
Imho any installer/specifier who doesn't do this is an incompetent fraud. It's a pretty basic requirement to match the actual declared capacity of th...
In answer to the last question, emphatically no in my view. More generally there will always be an offset between the modelled net heat loss and the...
Thanks, that seems like a good analysis. My car does something similar to your heat pump. If I drive then park, when I return to the car the reporte...
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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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Depends on what controls the pump! Thats the whole poi...
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