Last seen: Oct 1, 2025
hmm interesting to know that you need to be logged in / signed up as an installer. I will have to remember that as I'm tempted to go down the Solar PV...
To report back on progress, I've had a good go with the V3.3. Freedom spreadsheet but get overall losses in the 11.5 kW to 14kW (70 - 90 W/m3) region ...
@bontwoody I'll be interested in hearing how easy it ends up being to set up the TOU to best use the tariff(s), a shame it wasn't enabled for you to s...
Thanks, I'll check it out. You mentioned you went with the Vaillant in the end as best fit. What criteria was this based on (out of interest)?
I think the lack of available HSE guidance other than that aimed primarily at commercial installations with a high likelihood of large, low turnover, ...
@abernyte Thanks, I've drawn out my house schematic (and associated rad list) and started a few initial measurements. I was going to start with the Fr...
@jamespa Thank you for the thorough reply, glad to hear they are a serious contender. They certainly seem to be a frequently installed model. Scrollin...
Obviously (as this thread proves) system design, installation and commissioning are massive factors in getting a usable heating system. Are there a...
Thanks for all the warm welcomes. @editor I think you’re right, best for me to start a specific thread relating to my ‘project’ @toodles – I believe...
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RE: Replacing my 18 month old Hitachi Yutaki ASHP
In mild conditions, yes I turn the heating off. This i...
By trebor12345 , 8 hours ago
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RE: Havenwise App Help & Forum Support – Get the Most from Your Heat Pump
Hi HenriWe were puzzled by a thread being moved into he...
By Sheriff Fatman , 9 hours ago
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RE: Electricity price predictions
@transparent The Totnes Society seems to operative l...
By Batpred , 10 hours ago
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RE: Grant Aerona circulation/system pump staying on
My AERONA 3 circulation pump runs constantly whatever t...
By damonc , 11 hours ago
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RE: Configuring third party dongle for Ecodan local control
Thanks, @sheriff-fatman. Happy for you to search any po...
By Majordennisbloodnok , 13 hours ago
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Thanks, @cathoderay. I was aware of some changes to ...
By Majordennisbloodnok , 14 hours ago
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RE: British Gas vs Octopus Energy vs Heat Geek vs EDF vs Aira vs OVO vs EON.Next vs Boxt
It's buried within what has become my ongoing post-inst...
By Sheriff Fatman , 18 hours ago
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RE: Trying to understand my Nibe F1245
@greenlight Many thanks for the information, it's set m...
By Chris12 , 22 hours ago
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This is what I answered, I really have no hope: "......
By Batpred , 1 day ago
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread
@andrewj oh yes they offer Daikin 8kW, they tried to fo...
By AgentGeorge , 2 days ago
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RE: Solis S6-EH1P8K-L-PLUS – Why I Chose It and What I’ve Learned So Far
@majordennisbloodnok Good point! Just in case anyone re...
By Batpred , 2 days ago
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RE: Hitachi Yutaki SCombi Heat Pump - Owners
@sim0n0 It would be very useful if you could tell us...
By trebor12345 , 2 days ago
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RE: Benefits of an extra horizontal loop for GSHP
A correct sized collector is all you need. Saying this,...
By greenlight , 2 days ago
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RE: Grant Aerona Short Cycling
@mikefl, thanks for sharing your operating data, very i...
By Steam Powered , 2 days ago
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RE: Here is my heat pump installation with questionable COP in Italy
@jamespa Sorry for the late reply, I apologize for the ...
By materox345 , 2 days ago
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RE: A2A vs A2W: Which Heat Pump Would You Pick?
@editor Yes BUT that was 3 years ago installed in Janua...
By rob heatpump bob , 2 days ago
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Thanks for your response. I have UFH downstairs and ...
By GeorgeA , 2 days ago


