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Last seen: Jul 8, 2026
@toodles , yes you’re right, there are a lot of variables and all of the figures can be plus or minus. I guess both of your heat loss figures would ha...
@jamespa Again, I’m going to have to read this carefully to take it on board. But I absolutely agree about the piping and the radiators. As I said in ...
@jamespa I think I have explained what I have observed. The heat pump hits the target LWT first, then it hits the RWT and finally it hits the flow rat...
@jamespa , I’m having to think about this very carefully, so I need to tackle it in chunks. So this one first. I’m assuming there is a steady state un...
Also, if Octopus installed yours, and assuming you are an octopus energy customer, you can get the very affordable maintenance package they are offeri...
@toodles , Thanks and the 6.5kw is based on achieving what 24c from -2c , for example?
@toodles Thanks. That shows pretty much the same picture, with the heat pump going off and on, but maintaining a pretty steady temperature. What is yo...
@jamespa . James the spreadsheet may explain what I think is happening. I have this as an outstanding query with Daikin, but I haven’t had any respons...
@toodles well that’s a very respectable cop. Does it get its info from the MMI.
@toodles , Hi, that’s a very interesting chart. So your ( very high) temperature is consistent within a relatively narrow band. Your flow rate is all ...
@jamespa interesting. Yes I am, and I have been since 22nd October only using weather comp. The 16th Jan was when BG made the changes to remove the hi...
I forget to address this, because I think this is critical. The Daikin can increase its flow rate, but it needs to be called on to do so to meet somet...
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Latest Posts
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RE: Siting of the external sensor on a heatpump
Of course had the heat source been a heat pump it would...
By JamesPa , 2 hours ago
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Never assume, it makes an ass of u and me! OK, tha...
By JamesPa , 2 hours ago
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RE: Recommendations in Ely (Cambs) area for Full setup checks on Nibe HP setup for House.
In fairness all heating has cost a lot to run in recent...
By JamesPa , 4 hours ago
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RE: Is it the house or the equipment?
@springswood We have two Daikin single split A2A syst...
By Rob of York , 5 hours ago
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RE: Next steps on my ASHP journey: Radiators and Pipework
You should (almost) always reject having a buffer, by w...
By JamesPa , 1 day ago
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RE: Navigating the World of Refrigerants In Heat Pumps: A Guide for Homeowners
Indeed we are invvestigating AC at present and are havi...
By Toodles , 1 day ago
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No, but the heat pump must be capable of delivering a S...
By JamesPa , 2 days ago
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RE: Daikin ESPAltherma and Home Assistant installation
It's laziness lol The PV system is very chatty, meter...
By bobflux , 2 days ago
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RE: Problems with sizing a replacement for a Viessmann Vitocal 200-S
R (The R Project for Statistical Computing, I use it wi...
By cathodeRay , 2 days ago
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RE: Vaillant Arotherm Plus 7KW need a service on it
booked it with Vaillant. will use them until i can find...
By AdamK , 2 days ago
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RE: Adventures in heat loss calculations
I have seen it stated that the declared calorific value...
By JamesPa , 2 days ago
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RE: Two heating zones to one zone
@transparent Many thanks. The garage is fairly well ...
By Profzarkov , 3 days ago
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RE: Vaillant Aurotherm - Heater Wire Position
Ah, good point. I need to check if this was installed i...
By Batpred , 4 days ago
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@batpred thanks for getting a copy. Appreciate the supp...
By Mars , 4 days ago



