Last seen: Dec 10, 2025
In this case, it uses the NASA protocol rather than modbus, but the register addresses are the same as far as I know. This is what it looks like on my...
I spoke to Homely about doing that, but he said that I would need to be a qualified electrician to become an approved installer. I have since installe...
@ashp-bobba Thanks very much for your detailed reply. That is really helpful. In situations where the flow rate can deliver heat at a DT of 5 C or les...
I suppose that might be true at a stretch if you were doing space heating throughout the summer, but who does that? I would dig your heels in until yo...
@ashp-bobba Welcome to the forum. I would be interested to understand the reasoning behind your statements. What was your experimental set up? I would...
Can you explain the mechanism for this effect? Could it just be coincidental rather than causal? System volume may prevent short cycling, but there ar...
With your 2091/2092 settings, the heat pump will only cycle off if your 3rd party thermostat is no longer calling for heat. If your home is warm, t...
Those settings exclude frequent cycling as the cause of poor efficiency. With 2091/2092 set to 'Use(Signal only ON/OFF)', FSV 2093 is inactive, so it ...
@raiph I apologise for my incorrect assumption. A PWM pump should maintain your delta T, so I am not clear why you are experiencing problems with a lo...
@raiph You seem to want a Delta T of 5, but your water pump has a fixed speed / flow rate which is currently 15 l/min. Your heat output is determined ...
@dinhp I will try and upload an audio file as it is difficult to describe how it sounds. The noise level will vary depending on how hard the heat pump...
@dinhp Thanks for the extra info. Your COP of 2.49 for today is not great if OAT is 9C, although it was probably colder overnight. Does this include a...
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RE: Poll for Time of Use, tariffs, technology
Thanks for that, yes I can see that with Import price =...
By JamesPa , 12 minutes ago
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RE: Heat Pump Performance Analysis Web App using Modbus Data
@redzer_irl ok. Thanks I will have a look when ive got ...
By bontwoody , 13 minutes ago
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RE: Here is my heat pump installation with questionable COP in Italy
Well in Italy there is nothing controlling the quality ...
By materox345 , 1 hour ago
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RE: A Smarter Smart Controller from Homely?
Do let us know the outcome please. I have reached the c...
By Papahuhu , 1 hour ago
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RE: Configuration issues with 10kW Midea R32 heat pump
Thanks, sorry for daft questions. I now have this set t...
By SteveT , 2 hours ago
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RE: 10kw heat pump run in 24*7 data?
The curve really depends on the emitters in relation to...
By JamesPa , 3 hours ago
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RE: Has Anyone Else Noticed a Decline in Tradesmanship?
Sadly that is true. There are various reasons of cours...
By JamesPa , 3 hours ago
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I have just had a new solar array and batteries install...
By TechnoGeek , 6 hours ago
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RE: What a Bad Heat Pump Installation Looks Like
@editor The trick to an inside unit installation is to ...
By MikeFl , 16 hours ago
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RE: Different dT on each radiator?
The way heating systems are designed will result in rou...
By JamesPa , 18 hours ago
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RE: Setback savings - fact or fiction?
PS by visually merging the two tables as above, I ended...
By cathodeRay , 1 day ago
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RE: Homely for Daikin Altherma 3 - Petersfield Area
@russ If you would care to pose your questions on one o...
By Toodles , 1 day ago
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RE: The good, the bad and the not that great – my heat pump installation
@cathoderay the guy I spoke to on the phone seemed very...
By Burtis , 2 days ago
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RE: British Gas vs Octopus Energy vs Heat Geek vs EDF vs Aira vs OVO vs EON.Next vs Boxt
I get the impression that that comment "they don't comm...
By JamesPa , 2 days ago
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@majordennisbloodnok Just in case there are variations ...
By Toodles , 2 days ago
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RE: Latest NIBE model has known defect and no solution
@kings I’m glad I could help. NIBE are taking this very...
By Mars , 2 days ago
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread
@jamespa yes, I'm under no illusions but in some respec...
By AndrewJ , 2 days ago
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RE: Electricity price predictions
It seems the end of cfd payments is in sight, even if a...
By Batpred , 2 days ago
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