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Last seen: Oct 13, 2026
@watcher actually, a picture from inside the living room on a sunny day and cloudy day, at midday, with the shutters open would be very useful. What ...
@lizzie that is useful info, thanks. I’m currently considering external shutters to try and reduce solar gain as our house typically heats up to over...
@ian-s I too can provide some insight. We have a Cosy 9 along with 10kW PV and 16kW of battery, 8kW inverter plus an EV. The batteries are charged u...
@ian-s that would point to a 5kW heat pump being sufficient assuming you want the same temperatures across the house. These ought to be considered 15...
@jamespa I used 9MWh of gas but the heat loss was originally calculated at around 8.5kWh and a 9kW heat pump installed. It was subsequently recalcula...
For some reason, never explained, Aria use a buffer. However, it would also seem they know what they are doing and it doesn’t cause issues. Probably...
Did you see the post on Facebook where an air conditioning module, plumbed into the wet circuit and powered by the Cosy was shown? Only a prototype a...
It never takes much to drag something off-topic. At least this forum never succumbs to Godwin’s Law!
@transparent It seems to be designed that way - from their support page: ..... Pen Fault Detection A PEN fault refers to a problem with the prote...
@transparent I'll try and answer this as best I can. My house looks like your TN-CS (PME) image: there is an earth lead directly back into the servi...
@tim441 They did that last year: fitted a voltage recorder for a week and then took it away to analyse the data. They agreed that it was reaching vol...
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Degrees of Separation
Latest Posts
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RE: Heat pump branding. Clever, contemporary… or a bit too much?
I think Heat Geek have done an amazing job on their bra...
By Tomtheheatingengineer , 5 hours ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
I have just had 3 heat loss surveys, one by heat geek o...
By David , 5 hours ago
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RE: Heat Geek Zero Disrupt: Are We Sleepwalking Into Another Race to the Bottom?
I think that's the key question. After all inverter uni...
By Prunus , 7 hours ago
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RE: battery storage without solar
As of October 1st they need specific qualifications to ...
By EtchedPixels , 7 hours ago
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RE: How should the Boiler Upgrade Scheme be reformed?
A unit which uses water to transfer the heat/chill from...
By Temperature_Gradient , 8 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 , 8 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 , 8 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 , 14 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 , 14 hours ago
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Although regulations may well vary from country to coun...
By Majordennisbloodnok , 14 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 , 14 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 , 18 hours ago
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RE: Passiv Smart Thermostat - Help & Forum Support
@energystoragetech The heat capacity of some...
By JamesPa , 19 hours ago
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RE: tepeo ZEB UK Support & Info Thread
Sorry you are correct, I was remembering figures from t...
By JamesPa , 1 day ago
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