Last seen: Jan 14, 2025
@cathoderay yes certainly the system overall isn't generating energy during the defrost, its spending it on the defrost actions, so its valid to treat...
@cathoderay its not "compressor gate" that is how they all calculate it. The energy generated was 8kwh, thats what the heat pump will report. But the ...
are you sure that it is the HP is underpowered? or is it that your system design doesn't allow the maximum power of the heat pump to be utilised? does...
@cathoderay so I looked at table on page 44 of this , if thats the right unit and document? At -5C you can get 12.5kw @40C COP2.7, 12.0kw at 45C COP2....
@cathoderay do you have the whole table? or a link to it. max is probably the one that matters given you are trying to run it flat out right now. disa...
@cathoderay unless you've got an install that doesn't comply with the MI's in terms of airflow clearances (check the installer guide) , in your positi...
thinking about the installers (and related roles) that I follow , who discuss this subject area on Linkedin, they are largely the good ones I think. I...
@bontwoody can't see anything wrong with your reasoning. As per @kev-m, there is potentially a case that the smaller unit isn't quite enough - but in...
@derek-m maybe thats not the right technical term. I'm just telling you what it does. If you stand by the heat pump its a LOT colder when its running....
I always see a dip in the OAT as measured by the heat pumps own sensor whilst its running. I don't think there's a microclimate. There's simply a mass...
@bontwoody I think the answer is that we are "total amateurs" who really really gave a damn. read every document. watched loads of training and educat...
@hughf here's my (worse than) design conditions day, yesterday, 18th jan, -7C at 0600. HP usage was 69kwh electricity generating 166kwh of heat. ...
Latest Posts
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RE: RDSAP10 effect on existing heat pump EPC rating?
@toodles indeed. the question of proof will only get ...
By Tim441 , 24 minutes ago
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RE: End of Summer Time Reminder to Ecodan owners
@downfield my summer time setting has been, and is, set...
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RE: Midea ASHP – how to set weather compensation
Most of what you need is in my post above (15/10/2025 7...
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RE: Faulty Clivet heat pump out of the box
@kenbone No particular party being blamed - just the to...
By Toodles , 2 hours ago
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RE: My experience with 3 heat pump surveys: Heat Geek, British Gas & Octopus
@jords were you not given a copy of the full heat loss ...
By Chas Barry , 2 hours ago
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@eliuccio Sometimes changes in electrical regs only app...
By Toodles , 3 hours ago
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RE: Should Our Water Circulation Pump Be Configured to Run All The Time?
I signed up here due to finding this question via a Goo...
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RE: Mitsu PAR-WT60 Wireless Controller
Aslo, subject to FTC version, Your thermostat will cont...
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Ecodan Melcloud Temperature Change
Long time lurker, first time poster 5kW Ecodan, FT6 c...
By Gruff2001 , 6 hours ago
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@bontwoody Thanks for the info. Quite a spread of value...
By springswood , 6 hours ago
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RE: Daikin Octopus installation update - I saw my first defrost. 😍😂
Thing is it is one of those intermittent things. Yes I ...
By Jancold , 7 hours ago
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@transparent Yes to questions 1 to 3. Also, yes to the...
By Morgan , 7 hours ago
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread
OK thats cheap, the commercial price seems to be £400 p...
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RE: Solar inverters - where does the energy go when clipping?
I think I must query the sources on which Greenmatch ha...
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RE: Replacing knackered oil boiler with Samsung ASHP - Perthshire
This is how I run my Samsung 12kW ASHP with a 3rd party...
By Old_Scientist , 1 day ago
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RE: Testing new controls/monitoring for Midea Clone ASHP
@cathoderay thanks- yes will keep an eye out for the de...
By benson , 2 days ago
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RE: Renewables & Heat Pumps in the News
Hoping so as well! I am no specialist. The language use...
By Batpred , 2 days ago
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RE: The Hidden Secret to a Successful Heat Pump: Pipe Size Matters
@old_scientist Just to say that during our retrofit, we...
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RE: Daikin Altherma 3M ASHP and British Gas Hive Home
We have a Daikin EDLA08 8kW monobloc (DHW is handled se...
By Toodles , 2 days ago
