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Marzipan71
Marzipan71
@marzipan71
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Reputable Member
Joined: Nov 12, 2022
Last seen: Dec 14, 2024
Profile Activity
Topics: 3 / Replies: 99
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RE: Avoid the Heat Pump Villain: Why Low-Loss Headers and Buffers Can Sabotage Your Heat Pump's Efficiency

Thanks @jamespa - the flow in the manual is a bit confusing but in Capture 3 Daikin seem to also recommend/ mandate a 'balancing bottle' in the scenar...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Avoid the Heat Pump Villain: Why Low-Loss Headers and Buffers Can Sabotage Your Heat Pump's Efficiency

Hi all - following this thread with interest if a little over my head at times...I took a look at my Daikin Altherma manuals (2020 install) and the at...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Secondary pump speed - how much slower should it be?

Hi @toodles I have a Daikin Altherma HT with a LLH feeding two 'zones' - one for UFH and one for rads. I have two DAB secondary/ circulating pumps imm...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Avoid the Heat Pump Villain: Why Low-Loss Headers and Buffers Can Sabotage Your Heat Pump's Efficiency

Hi @toodles don't know if you've seen them before but there a couple of articles which may be of interest from Protons for Breakfast regarding his sys...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Air source heat pumps and noise

Just for the tape my OAT in Avigliano Umbro is given (by www.visualcrossing.com/weather/weather-data-services) as 6C at 9am on 28/12, with a 'feels li...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Air source heat pumps and noise

Very interesting. A neighbour of ours was considering getting an ASHP and her first question was 'But aren't they terribly noisy?'. I'm not sure where...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Air source heat pumps and noise

Hi @editor sent mine over - video from 19/12 with the outdoor unit from our 16kw Daikin Altherma HT struggling to drown out ambient bird song 😀...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Radiator flow and return temps with my ASHP

@toodles I'm definitely going to look into Homely in 2024 for my Daikin Altherma HT. My system always seems to be an outlier for some reason and I'll ...

2 years ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
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
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