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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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Latest Posts
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RE: Where heat loss surveys seem to go against practical reality
@cathoderay I started to record oil usage per month on ...
By ian33a , 2 hours ago
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RE: Next steps on my ASHP journey: Radiators and Pipework
@bobflux The hydraulic simulator is very interesting...
By Rob of York , 6 hours ago
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RE: 7kW EV Charger Options Advice
Thanks. Yes, we have patchy 4G. The only option we had ...
By Rusty , 11 hours ago
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RE: Being screwed over by Volkswagen Audi Group
Thanks, @batpred. That integration is the one I have in...
By Majordennisbloodnok , 1 day ago
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RE: How Accurate Is My DIY Heat Loss Calculation?
@batpred I suspect it will be more this year. I had 9 ...
By AndrewJ , 1 day ago
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RE: Surface mount or bury primaries for heat pump installation?
@jamespa It's rusting 🙂
By tomasmcguinness , 1 day ago
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RE: Glass lined Cylinder for private water supply
Thank you, once again, for your replies. Yes...
By ian33a , 1 day ago
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It’s been out a few days and Amazon has already attache...
By Mars , 1 day ago
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RE: Missing flow temperature in Heat Geek proposal
Yes, and this is another point I agree. We did find a f...
By Batpred , 1 day ago
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RE: Problems with sizing a replacement for a Viessmann Vitocal 200-S
A very good point. In effect, the DHW pipework is an em...
By cathodeRay , 2 days ago
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RE: Solar Power Output – Let’s Compare Generation Figures
@tim441 Here are those same three month periods for 202...
By Toodles , 3 days ago
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RE: Adding additional Solar Panels to a DC coupled battery system
@transparent thank you for your reply above. As alway...
By Old_Scientist , 4 days ago
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RE: Adventures in heat loss calculations
@rob-of-york — thanks for posting this, all very useful...
By cathodeRay , 6 days ago



