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Last seen: May 14, 2025
James, thanks again for your thoughtful and persistent questioning — this kind of interrogation helps clarify the strengths and limits of any approach...
Hi James,Thanks again for your detailed thoughts. I appreciate how precisely you're interrogating the claims and looking for practical value — so here...
@johnmo That’s a clever use of defrost behaviour to guide handover — and it sounds like you’ve fine-tuned it well for your setup. Just for reference, ...
@johnmo, I can see what you mean by the heat pump switching over and back between cooling and DHW, but I was referring to the heating season when you ...
@jamespa, following on from your examples — here's how I’d approach each:---a) 100 m² New Build (3kW @ -2°C, typical spec):In this case, structural zo...
That’s a great question, James, and it goes right to the heart of what sets structural zoning apart from conventional approaches like LLHs or buffer t...
@jamespa I want to clarify that my hybrid example was posted specifically in response to Johnmo’s system description. I would not recommend it univer...
@johnmo Thanks for sharing the full schematic, Johnmo. That’s a helpful layout, and it shows just how much manual logic and layout planning are neede...
@johnmo Thanks, I appreciate your detailed walkthrough. It’s always helpful to see how experienced users approach hybrid setup challenges. I agree ...
@johnmo Thanks, Johnmo — fair points as always. I agree that unnecessary complexity has plagued many modern heating setups, mainly where buffers ...
@heatgeek Thanks for your post and for articulating a very real scenario that reflects the kind of system we’ll be seeing a lot more of: low flow rate...
Thanks, James — that’s a really encouraging and fair response, and I appreciate the open-minded way you've approached it.Yes, you’ve summarised it wel...
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Degrees of Separation
Latest Posts
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Hi. Wondering if someone can offer some basic advice on...
By mrkfm , 13 minutes ago
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RE: Estimating true heat loss from twelve months of consumption data
I did, indeed, go with the 12 KW Vaillant unit.  ...
By ian33a , 4 hours ago
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RE: Replacing Storage Heaters with a Heat Pump in a Stone Cottage
Whenever I see the word modelled I am reminded of the t...
By cathodeRay , 5 hours ago
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RE: Say hello and introduce yourself
@olivierm welcome to the forums and finding the right i...
By Mars , 6 hours ago
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RE: Tesla Powerwall (2) Calibration Cycles
I’ve had two calibration cycles in the last three month...
By Davesoa , 1 day ago
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RE: Is This Initial Free Quote From Octopus Trusted Partner Reasonable?
@editor That's a pity, but thank you for checking. I'l...
By ltron2 , 2 days ago
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My fifth heat pump book, Heat Pumps Explained, is out n...
By Mars , 2 days ago
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RE: Who's your electricity provider and what's your tariff?
Just furkled Into the parameter menu. Found the master ...
By AgentGeorge , 2 days ago
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RE: Analysis of the economics of switching to an A2W ASHP compared to other heat sources
It's interesting that Norway with a much colder climate...
By Rob of York , 2 days ago
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RE: Review your electricity provider
Happy to add Scottish Power and the review 'dont touch ...
By JamesPa , 2 days ago
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RE: Is it just me, or does tradesperson timekeeping and communication drive you absolutely mad?
Yes, and I would suggest likely to get worse with more ...
By Batpred , 4 days ago
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RE: Electricity price predictions
This topic seems more suitable for this thread... I a...
By Batpred , 4 days ago
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RE: Why are ASHP installs so expensive?
It is clearly difficult to say, there must be cases whe...
By Batpred , 4 days ago
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RE: Panasonic Free Multi Z and Etherea Internal units.
@dgclimatecontrol Thank you for that information and re...
By Toodles , 4 days ago
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