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Last seen: Jun 10, 2026
Just had a go at this - scored 83. Not bad for just a homeowner with an ASHP and an interest in system design and how to extract the most efficiency. ...
Over the last 6 days we've done 8 re-heats up to 42degC on our 300l cylinder.Total energy consumed: 13.853kWh [1.732kWh per re-heat]Total heat energy ...
@old_scientist Sounds like that could work for you. Whilst staying on Agile, it may be worth shifting your usage pattern to what you would inten...
@irmartini this graphic may be helpful - plucked from the Octopus site at /octopus-smart-tariffs/
Ah great, keep us posted on how it's going - will be interesting to compare 🙂
I agree, this does seem to be an overall improvement: not only is there an extra 'dip' but all the dips are 'deeper' and the peak is less high compare...
Indeed, the Agile rates for this month until today have not been especially exciting. I'm on the waiting list with the DNO for getting an export MPA...
Heat Geek have a good article on this. I normally heat the DHW to only 42degC, but we have a high turnover. It gets plenty of extra temperature in the...
To help bolster the rather small number of NIBE owners on here, my ASHP is a F2040-12. I have this hooked up with the OpenEnergyMonitoring kit - lin...
@toodles I can also happily report that the Agile tariff is has been working very well for us since we switched over in early February - easily halvin...
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Latest Posts
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RE: Who's your electricity provider and what's your tariff?
@old_scientist Have you ran the numbers as to which ...
By Papahuhu , 1 hour ago
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RE: How Accurate Is My DIY Heat Loss Calculation?
D'oh - of course. I shouldn't post before my brain is f...
By Old_Scientist , 3 hours ago
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RE: Questions about A2A for heating as well as cooling
@rob-of-york I would concur with the underfloor insulat...
By Toodles , 5 hours ago
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RE: New Vaillant Arotherm controls link to existing thermostats ; wired vs wireless
Nothing attached! I have rads but UFH makes the case ...
By JamesPa , 5 hours ago
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RE: Cooling with air to water heat pumps
Passive cooling should always be the first call. Keep ...
By JamesPa , 6 hours ago
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RE: Do I add Air Con or MVHR to existing A2W ASHP?
@rob-of-york Thank you, I’m thinking along these same l...
By Toodles , 23 hours ago
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@Mars Good questions! The downstairs unit did the maj...
By Rob of York , 23 hours ago
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RE: Volumisers in Heat Pump Systems: Does Placement Matter?
@dave, I think @jamespa has probably identified the mos...
By Mars , 2 days ago
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RE: Plug and play solar. Thoughts?
My thought is simple. Bring it on and bring on plug in...
By JamesPa , 2 days ago
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RE: Heat Geek mini store vs pump size
Yes I agree, that’s why Heat Geek have most likely sele...
By Tomtheheatingengineer , 3 days ago
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@tomtheheatingengineer, thank you, and welcome to the f...
By Mars , 3 days ago
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RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
@majordennisbloodnok @tomtheheatingengineer For my ...
By JamesPa , 3 days ago
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RE: Is the "divide by 2900" rule still valid?
Really flow rate is a pipework limitation not a water p...
By JamesPa , 4 days ago



