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JamesPa
JamesPa
@jamespa
Moderator
Illustrious Member
Joined: Apr 3, 2023
Last seen: Aug 8, 2026
Topics: 27 / Replies: 5219
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RE: Plug and play solar. Thoughts?

In fairness to @transparent he has already said he doesn't know about other countries and, unless he is advising government, there is no reason why he...

6 months ago
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RE: Plug and play solar. Thoughts?

Ok all of this is very interesting but other EU countries seem to manage it. The risks are identical unless there are differences in fixed wiring de...

6 months ago
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RE: Plug and play solar. Thoughts?

Does anyone put a bidirectional device other than on a generator circuit (and if so why?), or is it the more usual case of a regular rcbo that bothers...

6 months ago
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RE: Vaillant app under reporting flow temperature

When its cycled off mine sometimes seems to show a target flow temp that is less than the 'on' target. I have occasionally wondered why and speculat...

6 months ago
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RE: Plug and play solar. Thoughts?

You cant expect Joe Public to know anything about the matters you mention. So the unit itself must protect a) Joe Public b) Grid workers c) the ...

6 months ago
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RE: Rate the quality of your heat pump design and installation

Really? Do you think that would work in practice or would mcs just produce lots of stats to show how well they are doing resulting in lots of good wo...

6 months ago
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RE: Need help maximising COP of 3.5kW Valiant Aerotherm heat pump

In general terms programming a target temp shifts the WC curve which also features a 'minimum flow temperature' parameter. So will programming 5C tar...

6 months ago
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RE: Plug and play solar. Thoughts?

My thoughts are that, so long as it can be made technically safe, it should be legal, not require planning permission and not require MCS. Basically ...

6 months ago
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RE: Why Buffer Tanks & Low-Loss Headers Can Sabotage Your Heat Pump's Efficiency

Without doing some horrendous modelling, or fabricating some transparent tanks, I would think that there is quite a significant risk that the upper se...

6 months ago
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RE: Rate the quality of your heat pump design and installation

As you say it's meaningless babble. Fwiw I doubt we need mcs standards at all given part L of building regulations which, unlike mcs standards, are...

6 months ago
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RE: Rate the quality of your heat pump design and installation

@cathoderay I think you may have misunderstood what I was getting at which perhaps I didn't make clear. Both @batpred and I touched, albeit very ...

6 months ago
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RE: Need help maximising COP of 3.5kW Valiant Aerotherm heat pump

I get the question and what you are trying to do, I will think about the best way to do this and make a suggestion once I have. A timed 'deep' setbac...

6 months ago
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