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webcmg
@webcmg
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Joined: Jan 5, 2022
Last seen: Aug 24, 2025
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Topics: 3 / Replies: 107
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RE: Balancing financial efficiency and comfort using the Octopus Cosy tariff

I do need to track what the peak usage is outside of Cosy slots in order to determine what the smallest battery I could get away with is... that would...

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Balancing financial efficiency and comfort using the Octopus Cosy tariff

@toodles I'm not 100% sure about that, I was considering a Fogstar 32kwh battery + inverter. I think this coupled with Cosy would likely reduce all ou...

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Balancing financial efficiency and comfort using the Octopus Cosy tariff

@richard24738 as we do not have batteries or solar, I'm sticking with OVO extended fixed 13 month plan to Nove 2026 with their free Heat Pump Plus add...

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: High air source heat pump running costs – Vaillant AroTherm Plus

@derek-m I have re-read this thread because @colin and I were discussing our respective ASHP efficencies. Quite early on in the thread you suggested m...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Topic
Balancing financial efficiency and comfort using the Octopus Cosy tariff
12 months ago
Forum
Air Source Heat Pumps (ASHPs)
Replies: 14
Views: 1833
Reply
RE: High air source heat pump running costs – Vaillant AroTherm Plus

Sorry, getting confused I meant @colin!

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: High air source heat pump running costs – Vaillant AroTherm Plus

@derek how is your COP looking for DHW when the heating is switched off in April/May? We had our Glycol levels adjusted and would like a comparitor. ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Vaillant AroTherm 7kW Air Source Heat Pump

@duncan-mac interested to know how you're getting on?

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Topic
When do you turn your heat pump off?
3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Replies: 2
Views: 1432
Reply
RE: High air source heat pump running costs – Vaillant AroTherm Plus

@murchison2003 Sounds like it might be setup with a fixed flow temp without weather compensation? Might be best to set up a new thread and post the ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: High air source heat pump running costs – Vaillant AroTherm Plus

@colin thoughts on my COP? Total 2022 is from March 2022 to Jan 2023. Looking forward to seeing how figures compare to last year now that it seems to ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Are there issues with Vaillant’s app?

@editor Vaillant software is flaky in my experience. There are times when it doesn't connect and a circular arrow icon just spins on the screen. I'm t...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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