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Mars
Mars
@editor
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Illustrious Member
Joined: Feb 11, 2021
Last seen: Sep 12, 2025
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Topics: 308 / Replies: 3109
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RE: Battle of the charging technologies

I'm horrible with cars, and even worse with EVs. Does Tesla have its own proprietary charging standard and is their tech bidirectional?

3 years ago
Forum
Renewable-powered transport (EVs & e-bikes)
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RE: Vaillant Arotherm Plus issues - circulation, efficiency and performance

@saz, as batalto has asked, are you at the point where you feel the issue is down to settings and controls? Am I correct in assuming that the heating ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Vaillant Arotherm Plus issues - circulation, efficiency and performance

@saz, in addition to all the previous advice, you need to check which consumer code your installer is a member of (HIES or RECC) then make contact to ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Comparing COP (coefficient of performance)

@derek-m, you always give me some very useful homework to do 😀. I have no idea whether they were calibrated and I don't think I have any certificates ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Comparing COP (coefficient of performance)

@derek-m, good points. Because we have a bivalent system, we've had to install two separate metres that are exclusively connected to our heat pump so ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Vaillant Arotherm Plus issues - circulation, efficiency and performance

@saz, so just to be clear, Vaillant have "fixed" the circulation pump (by getting rid of the sealant) and cleared your system out to nullify any block...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Vaillant Arotherm Plus issues - circulation, efficiency and performance

I think that's @witchcraft.

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Name and shame heat pump installers that have done shoddy work

@witchcraft, thanks for the update and I'm very interested to see how this all plays out.

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Comparing COP (coefficient of performance)

I ran an experiment this week to see what our COP and electricity consumption would be like by varying flow rates (45C and 40C):/p> As the winter co...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Vaillant Arotherm Plus issues - circulation, efficiency and performance

@saz, who was the original installer? Are you at liberty to reveal who it was?

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Vaillant Arotherm Plus issues - circulation, efficiency and performance

I’ve just reread the thread and you have had a Vaillant engineer come out. This engineer that just visited, were they from a completely new company?

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Vaillant Arotherm Plus issues - circulation, efficiency and performance

I can definitely empathise @saz - it’s very, very frustrating, even more so when things aren’t working and costing a lot of money to run. Have you ask...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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