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Last seen: Aug 10, 2026
Thanks for the update. As you say you are now piggy in the middle. Its sometimes said that legal cases are won by those with the best filing syste...
@batpred, @transparent thanks Since the inverter isn't between the mains and the CU, does this need an (automatic?) cut out device that ...
Thanks all for the help, this seems to be nearly as complex as heating! My current thought process, and the remaining questions, are this: ...
I hadn't spotted that there were two pumps in the UFH (well spotted!) but I had recognised the risk that the upstairs rads weren't getting enough wate...
Never assume it makes an ass of u and me! You need the return temp to be lower than about 55 for a boiler to condense. If you start of with a FT of ...
Before I answer your specific questions just one more thing to highlight. The upstairs rads may well be big enough, but because your heatmiser is (pr...
The costs, if any, are not that great - see my calculation above and comment about (non-) condensing boilers. When I abandoned setback and turned my...
By 'no recovery penalty' I mean no efficiency penalty because it has to work harder to supply the extra energy needed to replace the energy lost durin...
This topic will run and run for sure The misunderstanding many suffer from (and the controls industry almost actively encourage this misunderstandin...
Only the manual The commissioning documents state which inverter model it is.
Your installer is probably right. The L9 error means low flow, and if the zones aren't open this will be the reason. You cant fix the error without ...
Im sure there are plenty of gags to be had linking MCS and rodents of various types!
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RE: Electricity price predictions
I'm very much grounded in systems too, so I think we're...
By Majordennisbloodnok , 2 hours ago
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RE: Indevolt Batteries UK Support & Info Thread
Hi, can you remind me how to enable 3kW feed in when gr...
By dansus , 3 hours ago
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Further, there was a long discussion of the benefits of...
By Old_Scientist , 6 hours ago
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I appreciate that EnergyPlus is Valliant's first attemp...
By L8Again , 6 hours ago
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RE: Do I need to change the control unit when replacing my Ecodan Air Source Heat Pump
Unfortunately the answer is Yes you will need a new FTC...
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RE: PV and battery long payback - sense check query
So if it helps I was recently quoted about 8 grand for ...
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RE: HomeTherma Is Live: A New Home-Energy Platform Built Around the Homeowner
Signed up!
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RE: Has anyone seen this problem before? Huge anticycling times
Oh dear. Glad it was replaced. I have been mighty imp...
By JamesPa , 2 days ago
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RE: Can I start an argument about buffer tanks please? 🙂
Dont, just adjust the LSVs to get different temperature...
By JamesPa , 3 days ago
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RE: Heat pump running costs – what has actually worked for you?
I installed the air source heat pump in January 2026, i...
By bobflux , 3 days ago
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RE: Grant Aerona Air to Water R290 6.5 kW - Quiet Mark and Silent Running
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