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Last seen: Jul 25, 2026
Isn't it more efficient/cheaper to heat your DHW with the ASHP with a COP of 3 (300% efficiency) than use the immersion with a COP of 1? Excess sola...
@johnmo It's a utility hallway - that photo was taken during the installation, pipework is now lagged, and I will be building a closet to house the ta...
@mike-h Yes, I was aware it's not ideal, as discussed in this article: The installers insist on a volumiser (a) to ensure the minimum volume is a...
Yes, it really is a volumiser (2 pipe tank), and it is located on the primary 28mm return to the ASHP as shown here: so is on the return for both ...
Agreed, even a 5kW battery would allow one to charge at 11p and avoid importing at 34p during the peak period, plus it gives added comfort and conveni...
I am so relieved to find this thread and discover that I am not the only person obsessed with this - Like Steve, I have no issue with looking at the d...
Yes, we have a 50L volumiser installed, and our radiators can emit the minimum heat output at flow temps of 33-34C, so this is as low as we can go.
Interesting @mike-h. When I first looked at Cosy, it didn't appeal and we went with Agile. I'm not sure if they have changed the time slots and the di...
@steve81uk We are all radiators, no UFH so do not benefit of the thermal mass associated with the latter. Further, our new internal wall insulation (I...
I have an oversized Samsung 12kW heat pump, 3.64kW solar, but no batteries, and this new Cosy tariff has caught my interest. For anyone with batteries...
@ecobaker absolutely correct - I'd only manually kick in the immersion when prices turn negative, so (a) I can store energy by heating DHW as high as ...
@ecobaker Thanks. Hopefully we may have some cheap pricing slots on Agile this weekend, so I will be able to have a play and observe how these setting...
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Degrees of Separation
Latest Posts
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RE: Jokes and fun posts about heat pumps and renewables
@jamespa Normally, we have rainwater in our water butts...
By Toodles , 9 hours ago
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RE: Heat Pump Servicing & Maintenance – Good Value or Rip-Off?
@old_scientist if you are going DIY then you may wan...
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RE: Indevolt Batteries UK Support & Info Thread
After a short while that was followed by the 'power war...
By JamesPa , 15 hours ago
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RE: Samsung heat pump - data cable issue
That's well done. Cable is the correct type (LIYCY = 2x...
By bobflux , 22 hours ago
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RE: Electricity price predictions
I agree, we will find out at the next budget whether th...
By Old_Scientist , 1 day ago
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RE: Missing flow temperature in Heat Geek proposal
@editor I went through HG website, so should be ok for ...
By sttpd1917 , 1 day ago
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Who did the Freedom Heat Pump cloud server and what did...
By Mars , 1 day ago
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RE: Who's your electricity provider and what's your tariff?
Reading between the lines of what octopus are doing wit...
By JamesPa , 1 day ago
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RE: Air to air bus grant installer anywhere
The through wall two hole ones have their place (listed...
By EtchedPixels , 1 day ago
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I hope it goes ok, Hon can be hard to set up IF the sof...
By Graham Hendra , 1 day ago
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@clockworks Hi, So there is a big difference between st...
By ASHP-BOBBA , 2 days ago
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@editor wellvery comprehensive answer. I will get all i...
By Keithb , 2 days ago
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RE: Advice on my Heat Pump Journey: Old Stone Built Detached Cottage
all good advice I will follow this up
By PaulC , 2 days ago
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Heat of vaporization of water is 2.25 MJ/kg (0.625 kWh/...
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RE: Existing Solar Panel installation - structural roof calculation check
What will also happen is that they see that there is so...
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