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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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RE: Should Households Who Can Afford It Pay More for Energy to Help Those Who Can't?
That’s certainly a popular and widely held stance, but ...
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RE: Adventures in heat loss calculations
@rob-of-york In my experience, energy used to supply DH...
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Grant Aerona - Weather Compensation and Schedules
Im trying to set up a friends Grant Aerona. The WC curv...
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RE: Why don't people choose heat pumps?
Absolutely nothing in the regs prevents this, nor does ...
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RE: Air-to-Air Heat Pumps & Air Conditioning: UK Heating and Cooling Q&A
@jamespa I agree, the efficiency of Cosy Cooler ought...
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RE: How much of your renewable and home setup would still work if the internet went down?
I think you're right! 🤨
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RE: Renewables & Heat Pumps in the News
ECO4 muddies the water somewhat, and then some. I thi...
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RE: Vaillant ecoTEC Plus - Flow Temp and Set Up
If there is a drain nearby that's exactly what I would ...
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RE: DIY powerflushing tutorial
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I think that CCGT plant in Lingen is more likely to suc...
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RE: How Can I Prove Coal Was My Main Heating Source Without Receipts?
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RE: The Changing Jet Stream Could Challenge UK Air Source Heat Pumps
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RE: Adding data centre electricity costs to domestic energy bills?
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