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Last seen: Oct 16, 2026
No - it's Sunsynk in South Africa for example. Sunsynk sell into some markets (and thus have G98/G99 etc), Deye directly into others, Solark in the US...
The hardware is the same, the UI is a bit different. Deye do not sell into the UK market or I believe have UK certifications. There's a very complicat...
For most vulnerable and poor people you need to be talking to their landlord, who increasingly is a large mostly US venture capital fund who a) doesn'...
Just one note - if you are Dutch then Deye and Sunsynk are basically the same (the relationship is a lot more complicated) but it's basically the same...
Technically the vote (and thus the "will of parliament") is the decider but the number of votes a ruling party in the UK has lost in the last 50 years...
BS7671 is only relevant through Building Regulations Part P. If the government uses secondary legislation to amend Part P, or to clarify that...
@toodles With a phase change material the point is that the building doesn't change temperature due to the phase change. Instead it sits stubbornly at...
Stratification and size changes too. Phase change materials tend to change size and thus need a rather more flexible containment. There has been a d...
That will be absolutely murdering your energy efficiency unless properly abated when not in use, and it also drives losses in places you don't expect ...
The cooling side works much better if you can figure out how to get the energy out. The amount of kWh involved in freezing or melting a cubic metre of...
For passivehaus btw you also need to consider just using an electric heater (or even a large dog) as at that level of efficiency it can be that you si...
Whats more relevant is that a badly installed air/air system has a COP of near 4. Given the kind of people who do a lot of installs this is a feature ...
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Degrees of Separation
Latest Posts
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RE: Heat pump branding. Clever, contemporary… or a bit too much?
Yes exactly that. To put it another way I mean Heat Ge...
By JamesPa , 35 minutes ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
Your house sounds a lot like mine. 2 surveyors each sp...
By JamesPa , 60 minutes ago
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RE: Heat Geek Zero Disrupt: Are We Sleepwalking Into Another Race to the Bottom?
Thats true only if you do the wrong experiment. Done c...
By JamesPa , 2 hours ago
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RE: How should the Boiler Upgrade Scheme be reformed?
@temperature_gradient Isn't that just describing a regu...
By Prunus , 2 hours ago
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@etchedpixels I thought about that too, and between ...
By RonV. , 5 hours ago
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RE: battery storage without solar
As of October 1st they need specific qualifications to ...
By EtchedPixels , 15 hours ago
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RE: Renewables & Heat Pumps in the News
With regards to the BUS grant raid, I gave it more thou...
By ASHP-BOBBA , 16 hours ago
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RE: Why are ASHP installs so expensive?
The whole system seems to work on the basis of...
By ian33a , 16 hours ago
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RE: Missing flow temperature in Heat Geek proposal
Good plan. If you can get half hourly meter readings a...
By JamesPa , 21 hours ago
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RE: Heat Pumps Without Grants: Would You Have Installed One & Will You Now?
@editor Most certainly. The heat pump was an ideal s...
By Abernyte , 21 hours ago
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RE: Does anyone have experience of a smart water meter?
Yep I caught our slow leak from a £100 bill rise 8)
By EtchedPixels , 22 hours ago
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RE: Do You Need a Buffer Tank or Low Loss Header for Underfloor Heating in a Large Property?
@jamespa in some cases, failing the Turing test might b...
By GrahamF , 1 day ago
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RE: Passiv Smart Thermostat - Help & Forum Support
@energystoragetech The heat capacity of some...
By JamesPa , 1 day ago
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RE: tepeo ZEB UK Support & Info Thread
Sorry you are correct, I was remembering figures from t...
By JamesPa , 2 days ago
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