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Last seen: Oct 20, 2026
Why does it matter if the flow changes a bit, so long as its sufficient to carry the required energy? Mine certainly changes from time to time. No n...
Not really, and thinking of them this way can mislead. Its also misleading to think of the heat pump sending a fixed amount of heat. It sends hot wa...
That's actually two priorities, lwt and flow temperature are the same thing. If the radiators demand more heat, the only way it can maintain ft i...
Ebay? Or has the market been saturated as a result of ECO4?
@barrovian1963 yes. Not ideal but not disastrous either. There are tricks to increase the period/reduce the frequency eg increase flow temp hysteris...
A period of on followed by a period of off is one cycle, but only if followed (or preceded) by more on-off periods. One on/off transition on its own ...
Absolutely could be a volumiser and thats what I would recommend if the extra system volume is needed to meet the minimum requirement.
I will answer in a different order in the hope of shedding some light. Before I do though I would make the general remark that, in order to analyse t...
Nothing wrong with a remote on/off switch. I used to use my 40 year old hall thermostat that way when I had a boiler (as a thermostat it was essentia...
You are right, the very low flow temp is the major contributor to good COP. Also, at low flow temperatures, the potential penalty of a buffer is less...
The installers who insist you need a buffer are ones to be avoided. You may need a volumiser which has only 2 ports. These dont suffer the problems ...
OK, let me refine my simplified initial statement. Generally I would recommend that any TRVs except (a) for aesthetic reasons as described above ...
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