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Last seen: May 19, 2026
Judging by the representatives I have spoken to locally, they represent more or less whatever you want them to represent provided you don't try to dis...
Check on the heat pump controller. It will show whether the heat pump thinks its in DHW or space heating mode. If it thinks its in the desired mode ...
What does the controller show - does it show that its in heating mode or does it show its in dhw mode? It could just be a stuck valve/faulty conectio...
Understood, its your house and your heat pump so take all the time you need. I will respond to queries but otherwise wont post again until I hear fro...
OK noted, although I dont think any of the charts posted show this. This one definitely seems like human intervention not defrost because of when the...
Ah that makes sense. I think 'off' is actually 'setback' rather than truly off, which is clearly what has happened, a 3C setback in the target flow t...
@transparent All I can say is that I admire your optimism!
No, the fact that flow temperature reduces by ~3-4 C during nighttime hours (I havent yet worked out the exact hours) regardless of whether defrosting...
Nope, that doesn't work either. Apparently (according to the politicians and their supporters I spoke to on our local high street) climate change isn...
Sorry but I dont know. There must be something causing this timing so, if it matters, which I think it does, it needs to be found. If you think it d...
Really, bear in mind their policies. I think they will not care about evidence because it supports the ideology. So far as I can tell from a long di...
Latest Posts
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RE: Sizing an ASHP; Heat loss and kW
There will be no changes internally; ground floor is al...
By GutoFfowc , 1 hour ago
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OK, here's a rather off-the-wall discovery I've made th...
By Majordennisbloodnok , 2 hours ago
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RE: Indevolt Batteries UK Support & Info Thread
I'd like to re-visit this information from Indevolt. ...
By Transparent , 3 hours ago
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RE: Advice on Vaillant Sensocomfort
I just had an answer from Vaillant technical, they only...
By Batpred , 3 hours ago
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RE: Lower electric tariffs for heat pump users
Yes, I have not yet done real calcs. But it seems that ...
By Batpred , 4 hours ago
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RE: ASHP Capacity loss with aging
@toodles very good question and honestly I don't know.....
By Mars , 4 hours ago
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RE: UK warm homes plan - how can it be delivered?
Thanks for that. We actually got a warm homes local gra...
By Falesh , 5 hours ago
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RE: Loud noises in the night - and one for the toolbox?
So that phenomenon is usually referred to as "water ham...
By Transparent , 7 hours ago
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RE: Daikin Altherma 3 with Fan Coils in Puglia (Italy)… Sanity Check on System Operation
Hi Mars,Thank you so much for your response,I really ap...
By Simon_JM , 14 hours ago
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RE: Setback savings - fact or fiction?
Yes, also the higher OAT end is possibly a smidge high ...
By RobS , 22 hours ago
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Hi Mars, I've sent you a request to connect me with a...
By sttpd1917 , 1 day ago
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Grant Aerona R290 (15.5kW) - How is DHW Target Temp calculated?
Hello all, We have just had a Grant Aerona R290 insta...
By TaffontheTaff , 1 day ago
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RE: Debugging my legionella immersion heater
I notice this (66 is rather hot) with my legionella cyc...
By JamesPa , 2 days ago
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RE: DIY Heat Pump Installations: Navigating Legal and Regulatory Hurdles
@transparent I thought you would spot that wind turbine...
By Batpred , 2 days ago
