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Last seen: Sep 17, 2026
Consumption is determined principally by house loss! 200kWh at a COP of 2, which is very low, means the house loss is 16kW. At a more reasonable COP...
Maybe mark where it was before you fiddle. However if it is the index rad/circuit the LSV should already be fully open otherwise you are unnecessaril...
Not to me I must say. Whats the additional risk exactly that is not covered by a label. In the setup I am proposing (as shown in the diagram I ...
I'm presuming the lsv on this rad is open (or if not you tried that and it caused a problem elsewhere) Good luck, maintaining temperature difference...
Just one thought if you are cutting it that fine. Do you keep the door closed? If not you may struggle to sustain the difference without the rad be...
Ok that makes sense technically, but it would be pretty six sigma stupidity to be working on the system internals when the grid has gone off and you h...
Yes probably. I must say I don't much care for the Solis instruction manual which does concern me, the Sunsynk one is much better. On the other hand...
At least in part because our gas is half the price that it is in many mainland european countries. Check it out! The 'problem' is, at least arguably...
Thanks, I was beginning to conclude that would be the case. Sorry but I dont understand this comment, can you clarify. The changeover...
Heat loss is proportional to Inside Temp - Outside Temp, its that simple if you ignore heat transfer from/to surrounding rooms. So if you design temp...
Closing blinds/curtains is another option, standard practice in sunny countries.
Thanks for all the help so far. Based on all the discussions here is my latest iteration for a system which I think would work with Solis inverter an...
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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 , 6 hours ago
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Thank you @majordennisbloodnok – that means a lot, part...
By Mars , 10 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 , 10 hours ago
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RE: Missing flow temperature in Heat Geek proposal
That calculation is reasonable, output is proportional ...
By JamesPa , 12 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 , 14 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 , 14 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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