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Last seen: Sep 17, 2026
The Sunny boy is old enough that it should be considered dumb for all practical purposes. It limits its own output to 16A (measured at its own output...
Doubtless its possible but Im not currently sure its necessary or even desirable. You have plenty of kit much of which is unnecessary and unhelpful, ...
That doesn't make much sense as it should alter the flow temp, that's what WC is. 0 and 15 are presumably the outside temps, what are the correspond...
It does but it almost all applies to boiler systems and I wish I had understood when I had a boiler as much as I understand now. Just before I replac...
Seriously? So 'our heat pumps just work, we don't know how, but trust us they do'. That sounds like a red flag of the highest order! No sorry tha...
Some data is definitely useful. I ordered the internet connection for my Vaillant heat pump and use Home assistant to pick up some basic data because...
So theres a problem for starters. This means that the FT flatlines at -2 which means that, when its <-2 it isnt high enough to deliver the energy ...
That seems high. Do you know what your WC settings are (even if you cant change them and even roughly?)
Very much agree with this! Sometimes the way to get things to operate in pure WC mode is to set the curve on the controller, then just turn all the ...
Thats sensible then Most heat pumps seem to limit adjustment of the WC settings to installer mode, although some do expose something to ...
Fair enough and Im not trying to circumvent regulation, I was just checking that I understood the underlying cause for your comment and that I hadn't ...
Assuming your house was heated previously your oil consumption indicates a loss of more like 4-7kW, so an 8kW unit would probably have been perfect as...
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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 , 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 , 14 hours ago
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RE: Missing flow temperature in Heat Geek proposal
That calculation is reasonable, output is proportional ...
By JamesPa , 16 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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