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Last seen: May 18, 2026
I am not an ecodan expert but my instinct would be to say yes. Failure to defrost can cause a death spiral and leave your heat pump in a position whe...
That was what confused me! The heat pump FT is doing what you would expect.
I expect its something Octopus are looking at. Given the scale of their operation any way to shorten the installation process and make it more robust...
@batpred Thanks. I wasnt contemplating a self build battery, life is too short. Thanks for the info on UKPN, will check their site. @old_scient...
@bash Thats very helpful thanks, maybe I will just put together a G99 application (my DNO is UKPN) and see what happens! Im really hoping that by bu...
@andbeck Couple of questions and a thought: I cant actually work out in the plot which line is the DHW temperature and which the heat pump flow ...
My first comment is that this is a heroic effort to eliminate variables and illustrates how difficult this problem is. I might suppose that the fact ...
Interesting. Are they getting bunged up do you think, or somehow 'shifting'. I haven't seen them in the flesh but from the photos they look like the...
Thats an interesting comment. Does accuracy matter or is it sufficient that the adjustment (valve authority according to Heat Geek) is reasonably lin...
Fair enough. I confess I didn't listen to the video. Im not sure the use you describe is limited to botched heat pump systems though, as you say roo...
Here in the south of the UK I don't find the need to vary the weather curve but I do switch from 'no room influence' to 'expanded' mode (which acts as...
Latest Posts
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RE: Loud noises in the night - and one for the toolbox?
Brilliant bit of lateral thinking, and a useful one to ...
By Mars , 1 hour ago
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RE: Setback savings - fact or fiction?
Yes, also the higher OAT end is possibly a smidge high ...
By RobS , 1 hour ago
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RE: UK warm homes plan - how can it be delivered?
@bobflux My view is that regulation for consumer pro...
By Batpred , 4 hours ago
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Hi Mars, I've sent you a request to connect me with a...
By sttpd1917 , 5 hours ago
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RE: Sizing an ASHP; Heat loss and kW
Annual consumption is almost certainly better than an E...
By JamesPa , 9 hours ago
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Grant Aerona R290 (15.5kW) - How is DHW Target Temp calculated?
Hello all, We have just had a Grant Aerona R290 insta...
By TaffontheTaff , 10 hours ago
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RE: Advice on Vaillant Sensocomfort
The latest Vaillant announcement I saw said that they w...
By JamesPa , 14 hours ago
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RE: Debugging my legionella immersion heater
I notice this (66 is rather hot) with my legionella cyc...
By JamesPa , 1 day ago
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RE: DIY Heat Pump Installations: Navigating Legal and Regulatory Hurdles
@transparent I thought you would spot that wind turbine...
By Batpred , 1 day ago
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread
@swwils there is no logic to oversizing a heat pump. It...
By AgentGeorge , 2 days ago
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RE: Vaillant Sensocomfort Time
Thank youy for the pointer. I think I have managed to ...
By ispookie666 , 2 days ago
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RE: Forum updates, announcements & issues
I have been doing a lot of work on the site lately and ...
By Mars , 2 days ago
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@majordennisbloodnok good advice, thanks for that.
By David999 , 2 days ago
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RE: My Grant R290 9kW Heat Pump Installation
I am following this thread with great interest and than...
By TaffontheTaff , 2 days ago
