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Last seen: Sep 18, 2026
I'm guessing the sharp dips in FT are defrost cycles. Recovery is slow and I cant see the expected spike immediately after defrost. Have you got 'qu...
Save yourself some angst. Until the flow rate is fixed there is nothing worth speculating about. Once its fixed then measure the temp drop across ...
Mine is running on a 3B, albeit one with the official power supply. The power info is currently flaky (known issue with the integration) but you can...
Are you able to post any graphs? Unless its cycling or defrosting it should be achieving (at the heat pump) a COP close to spec. Defrost can cripp...
So at DT 5 (the normal design DT for heat pumps) that will transport 4.2kW (assuming water, about 10% less if its glycol). Is that sufficient, if no...
Hi, and welcome to the forum. I cant quite understand whats going on in the charts because the labels arent obvious. Cn you clarify whic...
Really good episode thanks for that. Uplifting as well as informative and, dare I say, it giving real hope. The guy from heat geek (James?...
Very sound reasons imho. My current feel, albeit based almost entirely on hearsay and what they say, is that they have a good mass market offering. ...
That's interesting. We don't know what design trade offs octopus, or for that matter any other heat pump manufacturer, have made. Octopus however ...
That alone, assuming it's true, suggests that generation is too lucrative. Which prima facie is at variance with zero bids for a windrarm licence cal...
Cosy if the only heat pump I know (and I have looked at the manuals to more than a dozen) which imposes such a high minimum flow temperature @ the col...
I think you may have missed the posts where its explained what he is trying to do which is get it running on weather compensation alone (as many do wi...
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Latest Posts
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RE: Why are ASHP installs so expensive?
For some reason that type of breakdown seems rare. I a...
By JamesPa , 10 minutes ago
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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 , 16 hours ago
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Thank you @majordennisbloodnok – that means a lot, part...
By Mars , 20 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 , 20 hours ago
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RE: Missing flow temperature in Heat Geek proposal
That calculation is reasonable, output is proportional ...
By JamesPa , 22 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 , 23 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 , 3 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 , 4 days ago
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