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Last seen: Aug 13, 2026
Hi Ray Looking at your chart you seem to have a stark increase in energy use for only a small drop in outside ambient. IE dropping from 10c to 8c ap...
@cathoderay Thanks for your observations. I need to correct a chart comment I made on my last post. The pink coloured crosses are December data not Ja...
Over 50 trials of setbacks vs continuous operation. Here is a scatter graph of this winter operation of our Ecodan 8.5 to date. The setup is a Ratia...
Sorry, I have to say this post simply serves to muddy the waters. I agree that the time of use tariffs may produce savings as a tactic. But in no w...
James / Derek. Over the last year or more there has been a lot of debate and speculation about the optimum flow rate for the Ecodan range. Some people...
@jaket we have decided a bit of cycling (but not too much) when it’s 10 or 12c is better at achieving a high CoP and minimise KWh consumption. The q...
thanks for your response. It’s not easy to compare like for like installations since anything can be different between personal choices and preferred ...
Very interesting. @mike-patrick Interested in how big your house is since output is bigger than us in our 180 sq mtr house. Also do you have low los...
Hi @jake. I’ve started getting a bit of cycling since we have had 12c OAT. we get about 2 or 3 cycles an hour. Auto adapt does help a little by reduci...
I had wondered if you have a list of your radiator sizes and how large your underfloor heating area is since a small emitter capacity can cause cyclin...
Hi @gary I’ve located a copy of it I think it was published last autumn. LATEST ECODAN DATA BOOK VOL6
apologies. I have to make a comment on flow rate. Jake’s HP is a 6kw it is not an 8.5 model and it’s flow rate recommendation is around 11 LPM. I also...
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Degrees of Separation
Latest Posts
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RE: Jokes and fun posts about heat pumps and renewables
Damn, I pressed the button on my new heat pump too soon...
By ian33a , 2 hours ago
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RE: Safety study for plug in batteries out to tender - looks like Q3 2027 at best before legal
I think it may depend how much of the world is on fire ...
By EtchedPixels , 6 hours ago
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RE: Air-to-Air Heat Pumps & Air Conditioning: UK Heating and Cooling Q&A
I hope it's not the same people who make the awful TV s...
By EtchedPixels , 6 hours ago
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RE: Why are ASHP installs so expensive?
ECO4 is classic British idiocy, "save" money by requiri...
By EtchedPixels , 7 hours ago
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RE: Renewables & Heat Pumps in the News
We need more building inspectors anyway and less self-s...
By EtchedPixels , 7 hours ago
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RE: Does anyone have experience of a smart water meter?
@majordennisbloodnok That is my thinking precisely, I s...
By Toodles , 15 hours ago
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RE: Replacing Storage Heaters with a Heat Pump in a Stone Cottage
I found some interesting data about the price of heat p...
By Rob of York , 21 hours ago
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RE: PV and battery long payback - sense check query
Thanks for all the comments. I finally got to the bott...
By DavidB , 23 hours ago
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RE: Indevolt Batteries UK Support & Info Thread
People following this thread who are hoping that plug i...
By JamesPa , 1 day ago
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RE: Passiv Smart Thermostat - Help & Forum Support
By Singlespeed , 1 day ago
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RE: Help me keep the faith with my air source heat pump installation
just had Vaillant over to service the HP and asked abou...
By AdamK , 1 day ago
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RE: tepeo ZEB UK Support & Info Thread
OK so ZEB is basically a variant on a storage heater, b...
By JamesPa , 3 days ago
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RE: Heat Geek installations: share your experiences
@editor I suspect that the Heat Geek online quote is a ...
By AndrewJ , 3 days ago
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RE: Adding additional Solar Panels to a DC coupled battery system
Ah, yes. Thanks for clarifying.
By Transparent , 3 days ago
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