SCOP and seasonal variations
I’ve had a long chat with Aaron from Homely Technical Support this afternoon; he has explained a little more about the logic of Homely control. Though I had set a setback temperature overnight, this is not seen as an ‘Off if warmer than this temperature’ command but more a case of ‘I’ll just footle along so that when you require the normal temperature in the morning, I’ll be there and will have achieved it at the lowest cost’! We had a chat about new features including one I think is fairly new and that is ‘Cool Night Mode’ and I have now toggled this ‘on’ and having removed the setback times from my schedule, Homely will just keep an eye on temperature but not start up in the night unless the temperature drops below 12 degrees C.
Homely have also introduced several new values on the temperature tolerance range,; it is now possible to select a maximum of 5, 4, 3, 2, 1 or 0 degrees of tolerance.
I was also told work is in hand to provide more info on various screens explaining the logic behind what Homely control is doing at that particular time and why. They will also be improving the scheduling menu and I have requested some accessibility improvements which are being sent to the app design people. There are also various ‘extras’ being incorporated for release later in the year. Altogether, a very positive chat! Regards, Toodles.
Toodles, heats his home with cold draughts and cooks food with magnets.
You might find some useful information on Michael de Podesta's blog. For instance, this post shows the distribution of levels of heat demand over an average year. https://protonsforbreakfast.wordpress.com/2023/12/17/variability-of-heating-demand-throughout-a-year/
There are also posts showing how COP varies for his ASHP. https://protonsforbreakfast.wordpress.com/2023/11/01/heat-pumps-cop-envy-is-pointless/
@ivanopinion (And @graeme) Michael has now updated his data and he illustrates nicely his cop over the full season, which generates his scop (3.5ish due to his use being dominated by dhw)
https://protonsforbreakfast.wordpress.com
2kW + Growatt & 4kW +Sunnyboy PV on south-facing roof Solar thermal. 9.5kWh Givenergy battery with AC3. MVHR. Vaillant 7kW ASHP (very pleased with it) open system operating on WC
@judith Its a good argument for separating the heating and DHW SCOPs when comparing systems 🤔
House-2 bed partial stone bungalow, 5kW Samsung Gen 6 ASHP (Self install)
6.9 kWp of PV
5kWh DC coupled battery
Blog: https://thegreeningofrosecottage.weebly.com/
Heatpump Stats: http://heatpumpmonitor.org/system/view?id=60
- 26 Forums
- 2,208 Topics
- 48.7 K Posts
- 74 Online
- 5,868 Members
Join Us!
Podcast Picks
Latest Posts
-
RE: Daikin 9kW to 8kW Swap Offer from Octopus
@jamespa The problem in taking the gas figure is that e...
By Terry1812 , 37 minutes ago
-
@bontwoody, I have to say, the response time here is re...
By Mars , 1 hour ago
-
RE: Renewables & Heat Pumps in the News
It rather depends on what we call 'local area' and 'tot...
By Transparent , 3 hours ago
-
RE: Mitsubishi Ecodan F8 error
Better than an early Windows/DOS error 'Faulty keyboard...
By JamesPa , 5 hours ago
-
I can now, I done an automation in Home Assist...
By DREI , 5 hours ago
-
RE: Bosch CS5800i 5kW - Experience So Far
What a difference a pump makes. We don't have OpenEne...
By Steelbadger , 5 hours ago
-
RE: Inventor (Midea) Heat Pump short cycling advice
I installed the 80L tank (volumizer) things got better ...
By immunity , 9 hours ago
-
RE: Testing new controls/monitoring for Midea Clone ASHP
@papahuhu at the end of the day if you are happy with h...
By benson , 21 hours ago
-
RE: Can you recommend a Mitsubishi service engineer in the Rochdale area?
@dgclimatecontrol We'll all need annual servicing. How...
By Suzy-shadow , 21 hours ago
-
RE: Octopus tariffs - a quick comparison
Does indeed need checking, @tim441. Neither Homely ...
By Majordennisbloodnok , 22 hours ago
-
RE: How not to install a heat pump
Delighted to hear that the buffer has been replumbed as...
By JamesPa , 23 hours ago
-
-
Actually, there's a rather greater degree of cattle-her...
By Majordennisbloodnok , 1 day ago
-
RE: The Hidden Secret to a Successful Heat Pump: Pipe Size Matters
@davidnolan22 So far as I can tell from the 'other p...
By JamesPa , 1 day ago
-
RE: 5 Star Service from Havenwise
I keep getting havenwise ads on my Facebook feed, so cl...
By benson , 1 day ago
-
Automation options to maximuse efficiency & ToU tariffs
I started a conversation with ChatGPT. What automation...
By Tim441 , 1 day ago
-
RE: 4 Year Ongoing Heat Pump Battle With Poor Heat Pump Installation
@jamespa Oh, I know some that are good and some not so....
By ASHP-BOBBA , 2 days ago
-
RE: Samsung Heat pump with Yonos Pico circulating pump running all the time
I don't know how many pumps you have but I guess it's o...
By JamesPa , 2 days ago
-
RE: Help me keep the faith with my air source heat pump installation
That's just human nature unfortunately, not special to ...
By JamesPa , 2 days ago