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JamesPa
JamesPa
@jamespa
Moderator
Illustrious Member
Joined: Apr 3, 2023
Last seen: Sep 13, 2026
Topics: 27 / Replies: 5366
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RE: Do I add Air Con or MVHR to existing A2W ASHP?

I guess that running it 'backwards' (water to air) it would. It's an interesting thought! Octopus posted an experiment with one of the many 400£ Air...

4 weeks ago
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RE: Do I add Air Con or MVHR to existing A2W ASHP?

I'm asking the same question. For me I want something that looks integrated not yet another box to store for most of the year. Im hoping that some...

4 weeks ago
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RE: Indevolt Batteries UK Support & Info Thread

Thanks, however that's an answer to a subtly different question. What, in your view, is the situation if the electrician does wiring up to a breaker ...

1 month ago
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RE: Indevolt Batteries UK Support & Info Thread

@transparent I seem to recall that you may have suggested that, provided an appropriately registered electrician installs and certifies the circuit ...

1 month ago
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RE: PV and battery long payback - sense check query

Quite probably not, but you can get a 32A relay and a Shelley device to switch it. I switched my 13A EV socket with a 16A Shelley relay for a while, ...

1 month ago
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RE: Vaillant service impasse

I am surprised by Vaillant and I would press them on this matter. They know who their registered installers/maintainers are. If they refuse to provi...

1 month ago
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RE: PV and battery long payback - sense check query

I can see that from an electrical regs PoV thats true, but is there any minimum functionality in a car charger that is required (other than to supply ...

1 month ago
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RE: Starting Our Heat Pump Journey: 1962 build 3 bed detached house

Depending on your flow temperature you should get a SCOP (seasonal coefficient of performance - energy out/energy in averaged over the whole heating s...

1 month ago
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RE: Minimum system volume

I don't notice mine defrosting, and most of the time Im in a room with a fancoil which is likely to be rapidly affected, and when its light I can see ...

1 month ago
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RE: Minimum system volume

OK but what I understood you were saying, and what I was struggling with because you have a large smoothing capacitor namely the house fabric, is that...

1 month ago
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RE: Indevolt Batteries UK Support & Info Thread

@indevolt-tech thanks that's most helpful. Hopefully plug in batteries will relatively soon become fully legal! Personally I fully understand an...

1 month ago
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RE: Minimum system volume

I agree with your analysis from the physics standpoint. With ufh in slab the slab is going to provide a larger reservoir than the water. I guess th...

1 month ago
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