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Last seen: Sep 17, 2026
After a lot of discussion earlier on this thread, with much help from @batpred and @transparent, I have come to the diagram below as my 'strawman' arr...
I agree with you, the assumption that DHW cylinders must always be replaced needs to be questioned. The mantra dates from the days of low temperature...
Please accept my apologies that I had misunderstood your intent. Please do post any further questions/ask for any advice you need as your journey pro...
Thats a good reply, hence the need for a checklist in cases where you aren't doing the job which, given you have a limited geographical reach, is a su...
By all means keep these controls so that you can use them, but plan not to do so. Instead set them all to max, operate the heat pump 24x7, and adjust...
I was going to give a similar response. If there were a service checklist (as there is with cars) then it would demonstrate the value of the activity...
to keep the manufacturer warranty when your warranty comes to an end, will you continue serving your heat pump - no, but I will do a couple of opera...
Classic isn't it. I will remember in future to suggest this to people experiencing odd errors. Now I come to think of it a similar procedure was sug...
Minimum system volumes are normally enough to cover defrost, which is critical. However a larger system volume may improve performance when the heat ...
You wont need one in heaven either which, at least according to the calculation originally published in Applied Optics, is hotter than hell (this has...
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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 , 7 hours ago
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Thank you @majordennisbloodnok – that means a lot, part...
By Mars , 11 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 , 11 hours ago
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RE: Missing flow temperature in Heat Geek proposal
That calculation is reasonable, output is proportional ...
By JamesPa , 14 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 , 15 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 , 15 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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