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Marzipan71
Marzipan71
@marzipan71
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Estimable Member
Joined: Nov 12, 2022
Last seen: Feb 27, 2026
Profile Activity
Topics: 4 / Replies: 114
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Reply
RE: Radiator flow and return temps with my ASHP

Thanks @hughf - our replies crossed in the post it seems. Yes, I may be spending too much time worrying about the delta t across the radiators as we h...

2 years ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Radiator flow and return temps with my ASHP

Hi @derek-m yes I had no idea how that thing worked and I'm glad I now do! Our auxiliary pump (Evosta 2) is set on speed 1 (lowest). Should tightening...

2 years ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Radiator flow and return temps with my ASHP

Just to add @derek-m I was able to find a diagram (for a Caleffi competitor, but I assume its the same) which shows the flow arrangement for these 'co...

2 years ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Radiator flow and return temps with my ASHP

Hi @derek-m thanks for reply. I did indeed try using a thermometer - a cheap meat thermometer was all I had to hand that could be inserted between the...

2 years ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Radiator flow and return temps with my ASHP

Hi @derek-m thanks for reply, apologies for delay – kids football got in the way of me tinkering with the LLH. So – photo attached of the LLH with apo...

2 years ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Radiator flow and return temps with my ASHP

Yes I mentioned in the (overlong) intro post that there's an LLH, which I suspect may be important...

2 years ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Radiator flow and return temps with my ASHP

Hi @derek-m thanks for the pointer. I'm using one of these and one of the use cases they give is for checking heating performance; that said, I checke...

2 years ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Topic
Radiator flow and return temps with my ASHP
2 years ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Replies: 17
Views: 4829
Reply
RE: Heat pump delta T too low - 2c

Thanks @heacol that makes sense - we have a LLH so I assume that counts as a buffer tank for the purposes of deciding if this is worthwhile (i.e., pro...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat pump delta T too low - 2c

@heacol and @iancalderbank reading this thread and given the general dislike of the Honeywell actuator/ valves...I have a 16kw Daikin Altherma HT whic...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP options for my mum living in Cambridgeshire

Thanks @toodles 😀 my Daikin is always an exception - I'm so thankful to the numpty who decided it was the set up we needed.

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP options for my mum living in Cambridgeshire

Hi @toodles I believe so yes - the installation manual for the Daikin internal unit (EKHBRD) gives instructions for the connection of the 'remote cont...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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