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Batpred
Batpred
@batpred
Member
Noble Member
Joined: Jan 3, 2025
Last seen: Jul 15, 2026
Topics: 11 / Replies: 1071
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RE: Heat pump design review please: 5 kW Vaillant aroTHERM Plus heat pump

For a sealed cylinder, the pressure is the same as mains, no matter where the cylinder is. And if too many taps are open, it will be the same no matte...

1 month ago
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RE: Heat pump installation quotations

@jamespa I noticed that in the Heat Geek design consultation output - heat loss report. For ours (and almost all our rooms are airtight), half the the...

1 month ago
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RE: Helium heat pumps

I would bet this does not hit the market before the current period of the gas boiler upgrade scheme, that is running until May 2027 offering £7.5k (if...

1 month ago
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RE: Heat pump design review please: 5 kW Vaillant aroTHERM Plus heat pump

@ragtime27 Our home is a bit different from the usual. We have a pressurized cold water cylinder with a in&out 22mm pipe. This means that, no m...

1 month ago
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RE: Heat pump installation quotations

@sttpd1917 Thank you, the heat loss figures vary but not by too much. The costs are significantly higher than what we saw, but that is partially...

1 month ago
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RE: Heat pump design review please: 5 kW Vaillant aroTHERM Plus heat pump

Looks like a very detailed and well comprehensive heat loss calculation with all the related statements. In case your hot water pipework is over 15...

1 month ago
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RE: Several AC coupled batteries

Sorry I missed this post. The introduction of a hybrid inverter with backup/ups capability has been discussed before in this forum, probably relevan...

1 month ago
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RE: Several AC coupled batteries

You mean, no longer having the usual consultation period? 😉 I have no future crystal ball but would expect more of a compromise/deadlock si...

1 month ago
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RE: Several AC coupled batteries

  Not exactly what you seem to be looking at, but a system like the below can work even when you want to maximise internal use rather than expo...

1 month ago
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RE: Heat pump installation quotations

@sttpd1917 We did not find a mature heatpump market. We had to get many estimates and then proceed to narrow options via heat loss surveys for real ...

1 month ago
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RE: Several AC coupled batteries

When our carbon budget gets tighter, would the government start to fund carbon capture out of general taxation or encourage faster phasing out of oil ...

1 month ago
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RE: Electricity price predictions

Good point, I do expect the bonus of putting my energy storage to use for the export during peak rates to not last forever… specially if planning perm...

1 month ago
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