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Last seen: Oct 14, 2026
@dak51, thanks for the update. Which brand heat pump is it, and I can’t believe the replacement is now already making a noise. As you said, the optima...
I'm horrible with cars, and even worse with EVs. Does Tesla have its own proprietary charging standard and is their tech bidirectional?
@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 ...
@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 ...
@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 ...
@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 ...
@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...
I think that's @witchcraft.
@witchcraft, thanks for the update and I'm very interested to see how this all plays out.
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...
@saz, who was the original installer? Are you at liberty to reveal who it was?
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?
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