Renewable Heating Hub Heat Pump Forums

Search with Wattson
Forums
Renewable Heating
Air Source Heat Pum...
SCOP and seasonal v...
 
Notifications
Clear all

Joining the Renewable Heating Hub forums is completely free and only takes a minute. By registering you’ll be able to ask questions, join discussions, follow topics you’re interested in, bookmark useful threads and receive notifications when someone replies. Non-registered members also do not have access to our AI features. When choosing your username, please note that it cannot be changed later, so we recommend avoiding brand or product names. Before registering, please take a moment to read the Forum Rules & Terms of Use so we can keep the community helpful, respectful and informative for everyone. Thanks for joining!

SCOP and seasonal variations

 
Page 3 / 3
Air Source Heat Pumps (ASHPs)
Last Post by bontwoody 2 years ago
28 Posts
7 Users
6 Reactions
7,657 Views
RSS
Toodles
 Toodles
(@toodles)
Famed Member Contributor
Joined: 4 years ago
Posts: 2861
01/05/2024 5:37 pm  

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.


   
👍
1
ReplyQuote
 IvanOpinion
(@ivanopinion)
Estimable Member Member
Joined: 2 years ago
Posts: 72
23/05/2024 7:00 pm  

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/



   
👍
1
ReplyQuote
 Judith
(@judith)
Prominent Member Member
Joined: 3 years ago
Posts: 548
19/06/2024 8:35 am  

@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 SCOP >4) open system operating on WC


   
ReplyQuote
bontwoody
 bontwoody
(@bontwoody)
Noble Member Contributor
Joined: 4 years ago
Posts: 1055
21/06/2024 5:21 pm  

@judith Its a good argument for separating the heating and DHW SCOPs when comparing systems 🤔


House-3 bed partial stone bungalow, 5kW Samsung Gen 6 ASHP (Self install)
6.9 kWp of PV
10kWh DC coupled battery
Blog: https://thegreeningofrosecottage.weebly.com/
Heatpump Stats: http://heatpumpmonitor.org/system/view?id=60


   
👍
1
ReplyQuote
Page 3 / 3
Forum Jump:
  Previous Topic
Next Topic  
Share:

SPONSORS

Join Us!

Installer Finder

Degrees of Separation

Latest Posts

SPONSORS

Members Online

Click to access the login or register cheese
Protected By
Shield Security PRO