Forums

Forums
Renewable Heating
Air Source Heat Pum...
Vaillant ASHP Weath...
 
Notifications
Clear all

Vaillant ASHP Weather Compensation with Octopus Cosy

 
Air Source Heat Pumps (ASHPs)
Last Post by Judith 3 months ago
3 Posts
3 Users
0 Reactions
460 Views
RSS
 tom58l
(@tom58l)
Active Member Member
44 kWhs
Joined: 4 months ago
Posts: 2
Topic starter 29/11/2024 11:33 am  

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?

This topic was modified 3 months ago by Mars

   
Quote
 JohnR
(@johnr)
Estimable Member Member
736 kWhs
Joined: 3 months ago
Posts: 97
29/11/2024 2:16 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)
Honorable Member Member
2549 kWhs
Joined: 1 year ago
Posts: 298
02/12/2024 10:11 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 it) open system operating on WC


   
ReplyQuote
Forum Jump:
  Previous Topic
Next Topic  
Share:

Join Us!

Heat Pump Dramas?

Thinking about installing a heat pump but unsure where to start? Already have one but it’s not performing as expected? Or are you locked in a frustrating dispute with an installer or manufacturer? We’re here to help.

✅ Pre-Installation Planning
✅ Post-Installation Troubleshooting
✅ Performance Optimisation
✅ Complaint Support (Manufacturer & Installer)

👉 Book a one-to-one consultation now.

Latest Posts

x Powerful Protection for WordPress, from Shield Security
This Site Is Protected By
Shield Security →