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Last seen: Sep 17, 2026
Thats interesting. Are you saying that all of your house circuits are connected to the inverter when it is operating off grid, albeit some of the loa...
Again thanks. Noted and safety issues are fair enough. The disappointment is (a) the extra CU and more particularly (b) the need to d...
Thanks Ah, so that places the 'off grid' port of the inverter between grid and load so protecting the grid. However it does introduce another co...
As I mentioned early on the cost of supplying and fitting a few rads is negligible. It certainly shouldn't come to legal proceedings if this is the b...
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...
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Degrees of Separation
Latest Posts
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RE: Heat Pump deployment statistics: June 2026
To my eyes, sat behind all of this is a basic policy ma...
By Temperature_Gradient , 9 hours ago
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Thank you @majordennisbloodnok – that means a lot, part...
By Mars , 13 hours ago
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We’ve just passed 20 million forum views! 🎉
It's official. The Renewable Heating Hub forums have of...
By Mars , 13 hours ago
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RE: Missing flow temperature in Heat Geek proposal
That calculation is reasonable, output is proportional ...
By JamesPa , 15 hours ago
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RE: Recommendations in Ely (Cambs) area for Full setup checks on Nibe HP setup for House.
Have you looked at the Nibe website? They list their ap...
By Lizzie , 17 hours ago
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RE: Why are ASHP installs so expensive?
A not unreasonable position and it wouldn’t be mandator...
By AndrewJ , 17 hours ago
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RE: Who's your electricity provider and what's your tariff?
@batpred When the raw material input has increased in c...
By Papahuhu , 2 days ago
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We kept ours and Heat Geek would have been in touch if ...
By Batpred , 2 days ago
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RE: Starting Our Heat Pump Journey: 1962 build 3 bed detached house
@ian-s I would encourage you to have a conversation ...
By Rob of York , 3 days ago
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RE: Is it the house or the equipment?
Thanks @jamespa The last hard to fix draughts in the...
By springswood , 3 days ago
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RE: Vaillant Arotherm – Using Heating
@l8again Mine is typically using 11w including the i...
By Batpred , 3 days ago
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RE: Next steps on my ASHP journey: Radiators and Pipework
If you have a flowmeter and two temperature probes, the...
By bobflux , 3 days ago
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RE: Siting of the external sensor on a heatpump
@jamespa Absolutely. Even if the same mistake was mad...
By Batpred , 3 days ago
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