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Last seen: May 18, 2026
Provided it's sufficient I can't think of any reason in physics why system pressure would affect cop
@kevh it's worth remembering that many lsvs only actually control the flow in the last half or quarter turn, so they may seem 'completely turned down'...
Which is one reason why I now talk about the economic security argument for renewables. There are a group of people, who may not environmentally tune...
I completely agree, just sounding a note of caution! I cant think of a reason why it would matter but, that said, when I did something similar (I...
Somehow Google matches images, but I suspect the techniques are quite sophisticated. Building on @majordennisbloodnok suggestion could it be as simp...
I think you are right. However in this case, in the UK, the money argument and the environmental argument are in perfect alignment in the medium/long...
People apparently, at least according to the polls, say it is if asked, but dont act that way. Im increasingly coming to the conclusion that energy...
Thats true, but having tried (and succeeded) in constructing a DiY version with computer fans, I can still appreciate the good design of the speedcomf...
Didn't with my boiler, too much temperature variation with both time and place. However I do grant that, had it featured weather compensation and l...
Depends on OAT. Mine cycles at OAT>10 and of course has periodic defrosts at OAT<4. Steady operation typically occurs between 4 and 10. This ...
Well of course I agree. There is a small saving in energy that you need to deliver to the house as a result of setback, which reduces the average hou...
OK but the lower average IAT is precisely why some saving might be expected. So the answer to the question you pose d is in theory yes.
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 , 6 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 , 6 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 , 8 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 , 8 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 , 10 hours ago
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Hi Mars, I've sent you a request to connect me with a...
By sttpd1917 , 11 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 , 15 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 , 16 hours ago
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RE: Advice on Vaillant Sensocomfort
The latest Vaillant announcement I saw said that they w...
By JamesPa , 21 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
