
Last seen: Jul 9, 2025
@heacol I’ve also herd that a volumiser can help with short cycling. I wondered if short cycling would be reduced if it was caused by mild outdoor a...
Just to confirm… our system does not have a volumiser, buffer tank or LLH. Here is a chart showing how our defrosts occur. There is a 2 or 3 minute...
I didn’t see your earlier reply to @old_scientist which goes a lot further in detail. Which is pretty convincing. ive copied it here for a reminder....
There are some compelling arguments for putting the volume on the flow side and I’m almost persuaded. However the emphasis appears more weighted on de...
@jamespa thanks for the thoughtful reply. Would be interesting how the replies pan out.
Great answers @old_scientist. One other query I have with position G is - the location is on the return side…. after the DHW cycle the system feeds 50...
So... where would you install the volimiser? See choices in the attached sketch. I think this will help to resolve some nagging inconsistencies in pre...
If your UFH is a high mass construction you may be able to store quite a bit of heat so you can run the heating above the cycling temperature or to a ...
I recall some basic maths kwh= LPS X DT X SHC Where the SHC is specific heat carrying capacity (SHC of water is usually quoted as 4.2 whereas glyc...
Hi @jamespa I’ve been travelling for a few days and felt I needed to address some unanswered messages from you. I think and hope we just had some ...
Sorry James the radiator output is governed by temperature of the water inside them and the lower the flow temperature the slower and sustainable the ...
I think Rob Berridge states on this episode that you can’t have “too much” radiator capacity on a HP installetion (if you want the quote try 12 mi...
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