Renewable Heating Hub Heat Pump Forums

Search with Wattson
Forums
Renewable Heating
Air Source Heat Pum...
Vaillant ASHP Weath...
 
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!

Vaillant ASHP Weather Compensation with Octopus Cosy

 
Air Source Heat Pumps (ASHPs)
Last Post by Judith 2 years ago
3 Posts
3 Users
0 Reactions
2,140 Views
RSS
 tom58l
(@tom58l)
Active Member Member
Joined: 2 years ago
Posts: 2
Topic starter 29/11/2024 12:33 pm   [#1905]

Hi all,

I've been looking at tariffs with Octopus (currently on Fixed 12M) and the Octopus Compare app suggests it might be better for me to go onto the Cosy tariff. 

I've got a Vaillant ASHP with weather compensation and it's been keeping the house at a pretty constant 20 degrees, with a heat curve of 0.65. If I did go onto Cosy I'd want to set it so the heat pump bought the temperature up a bit higher and then didn't go on at all between 4-7pm when the cost is high. Can that be done while still using weather compensation? I understood that if it's using weather compensation it ignores any other settings so any changes I made to the time control operation mode in the settings wouldn't make any difference, and there's not even a thermostat on the unit to know how how the house is.

Is that right, and is there anyway I can have the heat pump off between 4-7pm, or even at a setback temp?



   
Quote
 JohnR
(@johnr)
Estimable Member Member
Joined: 2 years ago
Posts: 106
29/11/2024 3:16 pm  

In the Vaillant app go to Settings (the cog wheel icon) > Control > Heating > Weekly planner and put in a temperature below the setback value for the period 16:00 to 19:00.



   
ReplyQuote
 Judith
(@judith)
Prominent Member Member
Joined: 3 years ago
Posts: 538
02/12/2024 11:11 am  

Your Sensocomfort is the thermostat and it does work as one in partnership with the WC curve. In expanded mode it switches off once the room is above the value selected.


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
Forum Jump:
  Previous Topic
Next Topic  
Share:

SPONSORS

Join Us!

Installer Finder

Degrees of Separation

Latest Posts

SPONSORS

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