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Last seen: Feb 21, 2025
Agreed, but you would also have to standardise the outdoor temperature and the humidity, so the defrost is realistic for the UK. And you'd also need d...
While that's true, I understand the Daikin 4kW is the same as their 8kW model, with software to limit the maximum output to 4kW. So, if anything, it i...
I disagree it is unlikely. It all depends. 15% is the difference between 5.8kw and 6.7kw, so maybe a 7kw machine would be OK for both levels of heat l...
To be fair, though, you don't want to design the system on the basis of the absolute lowest temperature, because it will then be overpowered for the e...
In practice, I find my radiators feel luke warm when the system tells me the flow temp is 30 degrees. Which is far less than 37 degrees, so I was puzz...
You may be right, but is that one day just a one-off or is it representative of the norm? If there are figures to show that carbon intensity normally ...
The biggest noise impact is that some of our toilet cisterns are noisy when they fill, due to the water being at mains pressure.
The price is still a pretty good guide, I'd have thought. Agile peaks from 4-7pm every day and that is surely because the demand that spikes then can ...
I haven't heard any discernible noise from the internal parts of my system, which is a Vaillant. Admittedly, I have no buffer, but I doubt they are no...
I would think this would be beyond the skills of most householders. My install just finished and it took them about 25 person-days and having observed...
Yes, Vaillant. But Aira were willing to give me that if I paid an extra £1k, which would still have been cheaper than HG. To be fair, a chunk of the ...
Just to round off some loose ends from my contributions to this thread, in the end I decided not to go with Aira. I realised that the various compromi...
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@editor Thanks for your response and recommendations. ...
By DavidB , 5 hours ago
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
I think I saw a diagram for an exhaust air dhw tank wit...
By JamesPa , 19 hours ago
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RE: Who's your electricity provider and what's your tariff?
@papahuhu Of course, in the way of such things, there a...
By Toodles , 1 day ago
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RE: Indevolt Batteries UK Support & Info Thread
Thanks, however that's an answer to a subtly different ...
By JamesPa , 3 days ago
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RE: Flushing system, cleaning and inhibitor
Yes, my 50L volumiser uses the two lower ports, so ther...
By Old_Scientist , 3 days ago
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RE: Solar Power Output – Let’s Compare Generation Figures
@toodles Such elegant symmetry. look at my lumpy bag of...
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RE: PV and battery long payback - sense check query
Quite probably not, but you can get a 32A relay and a S...
By JamesPa , 4 days ago
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RE: Starting Our Heat Pump Journey: 1962 build 3 bed detached house
@ian-s Look forward to making contact soon! Regards, To...
By Toodles , 4 days ago
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I don't notice mine defrosting, and most of the time Im...
By JamesPa , 5 days ago
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RE: Do I need to change the control unit when replacing my Ecodan Air Source Heat Pump
Kind of you, @calumm, but it was @f1p who did the heavy...
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RE: Electricity price predictions
2. As EV ownershp increases it'll certainly increase de...
By EtchedPixels , 6 days ago
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I meant to say I cannot register my kit at Energyplus… ...
By Batpred , 6 days ago



