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Last seen: Mar 31, 2026
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 😀...
@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 ...
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...
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...
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...
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...
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...
Yes I mentioned in the (overlong) intro post that there's an LLH, which I suspect may be important...
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...
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...
@heacol and @iancalderbank reading this thread and given the general dislike of the Honeywell actuator/ valves...I have a 16kw Daikin Altherma HT whic...
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There isn’t as far as I know, @djh, but you’re welcome ...
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RE: Can anyone explain the following behaviour with a Grant Aerona 3 R30 / Smart Controller?
Final Update. Yesterday, I was going through the moti...
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RE: How much can an east/west solar solar system be oversized?
Best performance occurs with PV string near inverter no...
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RE: Forum updates, announcements & issues
Thank you Mars for all your dedication to improvements;...
By Toodles , 16 hours ago
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RE: Who do I complain to about a poor ECO4 installation, can anyone advise?
Take it one step at a time. If you can get the dhw and...
By JamesPa , 22 hours ago
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RE: Selling 2 x Kensa Shoebox 7kw GSHP (New)
Hi Jain, we’ve got an ashp so I’m afraid we won’t be yo...
By Judith , 22 hours ago
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No buffer or low loss header Grant controller in sens...
By JamesPa , 1 day ago
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RE: Are We Sleepwalking Into Another Race to the Bottom?
That's an amazing job to get all that in there! A truly...
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RE: Anyone concerned about GivEnergy?
Thanks for your advice - I'll keep trying with the inst...
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RE: Plug and play solar. Thoughts?
I am also yet to find a case where an installation that...
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RE: British Gas vs Octopus Energy vs Heat Geek vs EDF vs Aira vs OVO vs EON.Next vs Boxt
This is what I got from OVO. At least it was quick.. ...
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RE: IVT greenline HT Plus E - Circulation Pump Constantly On
Welcome to the forums. Irrespective of which brand yo...
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RE: 7.5kW Heat Loss, But Quoted a 10kW Midea. No Re-Pipe, No Buffer Tank. Does This Add Up?
Oh, how I love these old scientists!I'm in with your 5 ...
By LeJamaisContent , 2 days ago
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RE: Jokes and fun posts about heat pumps and renewables
@jamespa Someone who is not easily phased I suppose.
By Toodles , 3 days ago
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@downfield Once OE had removed our gas meter and capped...
By Toodles , 3 days ago
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Living with a Low Loss Header (Or Measure For Measure, it’s All About the Pump)
I know, low loss headers (LLHs) aren’t necessarily ‘low...
By Toodles , 3 days ago
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RE: What is the main ‘dictator’ of Agile’s unit price?
After seeing umpteen negative price slots again today, ...
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RE: The Reality Behind a Failed Heat Pump Installation – and an IWA Insurance Rejection
@ian-w Getting back to the problem in hand, what do yo...
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RE: Solar Power Output – Let’s Compare Generation Figures
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By Toodles , 3 days ago
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@judith, glad you found the story interesting. On eff...
By Mars , 4 days ago
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RE: New Vaillant aroTherm Plus in black - When will it come to the UK?
The vaillant controller and app do all of that (and mor...
By JamesPa , 4 days ago
