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Last seen: May 19, 2026
@amin I dont think materially relative to this (I assume 'nominal' means the output at which they measure all the other various parameters...
Unfortunately you will almost certainly need to go a layer deeper and look at the detailed specs (which are not always easy to find) to work out what ...
You are absolutely right. I think another common factor may be whether the battery is installed at the same time as solar or is an add on to existi...
I think that's the essence of my problem. I bought into solar in 2011 so the battery (with an additional inverter) needs a standalone business case (...
I cant sorry. Its based on some calculations I did from Mitsubishi's R32 COP VS FT tables, which roughly gives a penalty of 3% for each degree increa...
Maybe this: or maybe that the effect you are seeing is not caused by setback (correlation does not equal causality) or maybe it is but not due ...
Two days will never be sufficient because the run up and the days after matter as well. Somewhere in the West Country (I think) there are two houses ...
I dont know TBH. Quotes for installed batteries seem very similar, a bit more than: 2.5K=5kWh, 5k=10kWh, 8-9K=20kWh. I am including cost of capital....
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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 , 4 hours ago
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RE: ASHP Capacity loss with aging
This is a good question. The short answer IMO is yes, c...
By Mars , 10 hours ago
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RE: Loud noises in the night - and one for the toolbox?
Brilliant bit of lateral thinking, and a useful one to ...
By Mars , 12 hours ago
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RE: Setback savings - fact or fiction?
Yes, also the higher OAT end is possibly a smidge high ...
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RE: UK warm homes plan - how can it be delivered?
@bobflux My view is that regulation for consumer pro...
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Hi Mars, I've sent you a request to connect me with a...
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RE: Sizing an ASHP; Heat loss and kW
Annual consumption is almost certainly better than an E...
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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...
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RE: Advice on Vaillant Sensocomfort
The latest Vaillant announcement I saw said that they w...
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RE: Debugging my legionella immersion heater
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@swwils there is no logic to oversizing a heat pump. It...
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RE: Vaillant Sensocomfort Time
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