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Last seen: May 17, 2026
At a guess on the heat pump controller itself unless the Honeywell has been wired to control DHW also. You may be better revisiting the space heatin...
I wouldnt be surprised. There is, in principle, a role for arbitrage to help balance grid load, but (at least based on what @transparent tells us) ...
@old_scientist @batpred The other area where this becomes relevant is arbitrage (buying low and selling high). This, at least as I read it, is NOT ...
Hi Contrary to the outrageous claims made by @cathoderay Im not an expert on anything, just a regular guy with degree in physics from 40years ago an...
I expect they are all made in the same factory in China! I suspect because the absolute value doesn't matter to the day to day operation and they...
OK, 2*22mm good, 1*25mm composite somewhere between pretty bad and unacceptable unless its very short with swept bends only. Do you know roughly ho...
Woah - is that single run (flow and return) rather than two runs (2* flow and 2* return) in parallel and roughly how much of this is there please and ...
@davidalgarve Thanks, thats great data on the pumps and as you say different but not much. I have some ideas forming both by way of explanation a...
@davidalgarve I have deleted your post made in error, I will delete this one also once I know you have read it!
Firstly its great news that you are improving things! I would try to avoid that TBH as its creating unnecessary resistance. Can you remind us wh...
It will consume more power in the water pump but it is more likely to increase COP than decrease it, because it means that you need a slightly lower f...
Latest Posts
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RE: Setback savings - fact or fiction?
@cathoderay , indeed, I do not need that level of detai...
By PeterWurmsdobler , 20 seconds 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 hours ago
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RE: Vaillant Sensocomfort Time
Thank youy for the pointer. I think I have managed to ...
By ispookie666 , 17 hours 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 , 17 hours ago
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@majordennisbloodnok good advice, thanks for that.
By David999 , 20 hours 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 , 23 hours ago
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RE: Sizing an ASHP; Heat loss and kW
You can't measure heat loss with a website. But you ca...
By JamesPa , 2 days ago
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RE: Estimating true heat loss from twelve months of consumption data
@ian33a — I have a sort of residual interest in this pr...
By cathodeRay , 2 days ago
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Hi, Thank you. So its a Daikin Altherma 3M...
By Lbart68 , 2 days ago
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I have a Contactum CU. Would the below RCBO (descriptio...
By Batpred , 2 days ago
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RE: Samsung gen 7 HP 12kw - auto control issue and water law
@chainreaction Agree with @broadsman , it seems many ...
By Batpred , 2 days ago
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RE: Anyone concerned about GivEnergy?
@transparent Thank you and appreciate your timely reply...
By SUNNYSKIES , 2 days ago
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RE: Grant Aeona 3 R32 cycling with weather compensation.
The hot water heating looks normal. The heat transfer ...
By GrahamF , 2 days ago
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RE: A2A vs A2W: Which Heat Pump Would You Pick?
Good questions @temperature_gradient. My understanding ...
By springswood , 2 days ago
