Last seen: Feb 27, 2026
Hi @derek-m - thanks once again for feedback. Its clear to me now that I'll need to use the offset to adjust the WC curve and thereby produce a differ...
Hi @derek-m, Many thanks for this, most interesting and helpful. So – we have lift-off and I switched the system on last Friday evening (25/11) with...
Hi @derek-m thanks again for reply. Yes we have an ‘outdoor unit’ (‘the big fan’) and an ‘indoor unit’ (‘the big grey box’), and the Altherma ST therm...
Hi @derek-m thanks for this explanation - makes sense and provides ample background for discussions with Daikin at my end. It does sound like the sola...
@derek-m Electricity here is pretty pricey at the moment - 55c for daytime (F1 - Mon to Fri 8am to 7pm) use and 52c for all other times so there's a s...
Hi @hughf and @derek-m - below are some photos of the pipework (the insulation is awful and I'll be re-doing it this winter - promise!) and the top of...
Many thanks @derek-m and @hughf this is terrific advice and background on how this system works which has been bamboozling me for a while. I'll certai...
Hi @transparent thanks for this - yes I mis-spoke about the cold water - it may sound a bit daft but I didn't even understand until relatively recentl...
Hmmm not entirely sure that's something I wanted on my CV...oh well, it is what it is and hopefully it can still keep us warm this winter! 😀
Hi @hughf very interesting comments - I have a very limited understanding of how this all works so please forgive anything I say that seems naive! Wha...
Hi @hughf we have the Daikin remote controller as they call it which allows us to change the field settings etc., then two in-room 'smart' thermostats...
Yes our installers/ builders didn't seem to consider this and I only learned of the radiator pipe size issue post-install (and post-payment). We did h...
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RE: A Smarter Smart Controller from Homely?
Further to my previous posting, this plot shows today’s...
By Toodles , 14 minutes ago
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RE: Setback savings - fact or fiction?
I described you as panicking because you don’t appear t...
By SUNandAIR , 4 hours ago
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It's possible to estimate the minimum power from the in...
By bobflux , 4 hours ago
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RE: My misgivings about installing ASHP and solar panels via the ECO4 scheme...
@editor I am still very confused by it all. Stage 1 ...
By Dwynwen , 5 hours ago
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Interpreting MelPump data / cycling?
Hello All. Our heat pump was installed in 2022 and I'...
By Boodgie , 6 hours ago
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RE: Daikin Altherma 3 LT compressor longevity question
@editor Daikin’s usual reply is ‘Ask your installer’ - ...
By Toodles , 7 hours ago
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RE: Underfloor Heating Installation Issues with Heat Pump
This looks like a practical solution 👍
By bobflux , 17 hours ago
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Your installer may well be right. If the WC curve isnt...
By JamesPa , 19 hours ago
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RE: Our 10 year old Grant heat pump failed
Same as many boilers, ovens washing machines and other ...
By JamesPa , 21 hours ago
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RE: Home energy storage & battery register
3 X Pylontech US2000 Plus @ 2.4 Kw each = 7.2 Kw SoFa...
By vzm56n , 22 hours ago
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Horizontal Hot Water Cylinders for ASHP with Energy Efficiency Rating 'A'
I looking to Have an ASHP installed in the near future....
By vzm56n , 22 hours ago
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RE: Noisy Grant Aerona 3 13kW ASHP question
Here's a LibreOffice spreadsheet. I put the formula f...
By bobflux , 1 day ago
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RE: Electricity price predictions
I assumed you were joking here. Hence my joke about ...
By Batpred , 1 day ago
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RE: Struggling to get CoP above 3 with 6 kw Ecodan ASHP
Photos of cylinder cupboard and UFH manifold would be u...
By Travellingwave , 1 day ago
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RE: Forum updates, announcements & issues
Something big is coming to Renewable Heating Hub! Ove...
By Mars , 2 days ago
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RE: A Single Voice for Heat Pumps, But Will It Finally Raise Industry Standards?
From what I’ve read, the Heat Pump Association UK is me...
By Jonatan , 2 days ago
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RE: Tell us about your Solar (PV) setup
Pylontech US5000 stores about 4.3 kWh accounting for in...
By bobflux , 2 days ago
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RE: Octopus Cosy 12 Heat Pump Regret: Incredibly Loud, Poor Heating & Constant Hum - Help!
Hi all, Just an update on where we are with the "Consta...
By DEdwards , 2 days ago
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RE: How to control DHW with Honeywell EvoHome on Trianco ActiveAir 5 kW ASHP
Well I've had an interesting few days and would like to...
By giganto , 3 days ago
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RE: Peak Energy Products V therm 16kW unit heat pump not reaching flow temperature
Yes, here's mine. From the service manual parts numbers...
By bobflux , 3 days ago
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Had to learn the hard way 🤣 now I'm sharing T...
By bobflux , 3 days ago
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RE: Issue with a Grant Air Source Heat Pump & Tado Smart Thermostat
Im assuming from your original post that hysterisis ref...
By JamesPa , 3 days ago

