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Batpred
Batpred
@batpred
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Noble Member
Joined: Jan 3, 2025
Last seen: Sep 12, 2026
Topics: 12 / Replies: 1132
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RE: Adventures in heat loss calculations

Hats off, can´t fault it. In our case, I was most confident with the fact the surveys fell between the gas usage calculated loss. Well, HG´s did af...

2 weeks ago
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RE: Switch suitable to change between two inverter CT's

If I understood right, the challenge is that IOG offers ad-hoc additional periods where the EV is charged (and Octopus drives the charging). When the ...

2 weeks ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?

Agree with Major. And even if I was very happy with HG, I have not seen any solid approach to optimise the rads, etc. The basis for the optimisa...

2 weeks ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?

The Pro is supposed to be cheaper, but we also saw this changing round with the various quotes 🤔. Not much difference in features, just easier...

2 weeks ago
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RE: Switch suitable to change between two inverter CT's

If the Solis inverter is the same version as mine, (shipping with Meter Model SDM120CTM with its own CT), it can use a meter input on Pins 9/10 using ...

2 weeks ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?

Thanks for the update. Vaillant is a good choice, their technical team is very responsive, helped to understand the controls that we wanted. With HG, ...

2 weeks ago
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RE: Starting Our Heat Pump Journey: 1962 build 3 bed detached house

Our Vaillant boiler was working with weather comp, but operating with a low set back different temperature overnight. We limited the boiler flow tempe...

4 weeks ago
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RE: PV and battery long payback - sense check query

@jamespa I was just commenting on the speed, not suggesting shortcutting due process. Moving slowly seems to make it predictable, a benefit on i...

4 weeks ago
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RE: Starting Our Heat Pump Journey: 1962 build 3 bed detached house

Yes, I meant the 30 minute raw data as the input. The 3-6 hrs is how your formula worked, I believe. Thanks!  

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

Eventually we managed to get our Arotherm to cool, even if a bit too late to get much data on how effective it can be. With the built-in dew point f...

4 weeks ago
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RE: Advice on Vaillant Sensocomfort

Oops, I meant Sensocomfort (the UI to the controls)

4 weeks ago
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