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Last seen: May 18, 2026
Reducing radiator size is just plain madness in most cases, whatever the survey may say. You can always turn them down. Why on earth would you waste...
@benson very well done for implementing this with such a simple UI. FWIW its functionally similar to what Vaillant heat pumps do if you chan...
That's really helpful. Yor last sentence confirms it's not to do with the ashp as such. When your ashp was installed you were also upgraded from an...
All understood. Obviously its a bit house dependent but many people do find that pure weather compensation is the way to go both for comfor...
From OPs description I had the impression (quite possibly wrongly) that the water hammer is associated with the domestic hot/cold water not the heatin...
@davidalgarve Fwiw my house is more stable with pure WC than it is with any room influence , with the exception of the extreme ends of the season wh...
I agree with@jancood and incidentally it is unlikely to be anything to do with the ashp so unlikely an ashp specialist can help any more than any othe...
Noted. Its a pity you didnt capture the flow rate and return temp when it was in fixed FT mode, but you could capture it now or just go for the 95% c...
OK well so far as I can see there are now only three possibilities 1. The heat pump is unable to get up to the set temperature because of a...
Thats getting pretty convincing. Remember also to check that Night Mode isn't in operation.
@andy1618 see the very sage advice from @editor above. I took would bypass the installer initially and/or check the installation manual.
@adamk FWIW I managed unintentionally to 'coax' mine into making more noise than usual . The noise sounds rather like what you are experiencing and a...
Latest Posts
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RE: ASHP Capacity loss with aging
This is a good question. The short answer IMO is yes, c...
By Mars , 4 hours ago
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RE: Daikin Altherma 3 with Fan Coils in Puglia (Italy)… Sanity Check on System Operation
Welcome @simon_jm, and this is not a dumb question at a...
By Mars , 4 hours ago
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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 , 6 hours ago
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RE: Setback savings - fact or fiction?
Yes, also the higher OAT end is possibly a smidge high ...
By RobS , 6 hours 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 , 8 hours ago
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Hi Mars, I've sent you a request to connect me with a...
By sttpd1917 , 9 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 , 13 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 , 14 hours ago
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RE: Advice on Vaillant Sensocomfort
The latest Vaillant announcement I saw said that they w...
By JamesPa , 19 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
