Last seen: Nov 3, 2025
@huwsy its just the humidity that will get you. Only thing you can do is tweak down the flow temps so the unit doesn't freeze as often.
@bob77 I used 1.8MW which is my highest use - ever. But that includes all the power in the house too. The ASHP has never been so cold. Last year I was...
@cathoderay once you get below -5 there is no moisture in the air so you get substantially less defrosting - nothing to freeze. I used to live in Finl...
Nov 21 - Dec 21st bill is in and the damage is... £450. I averaged 22.94p/kWh using a mix of solar and batteries. Interesting is was basically a 50/50...
@calzo21 if the upstairs is cold - have you tried adjusting the mixing value to add less colder water in?
100% with Cosy I could come off peak power - Only on a very coldest of days would it be an issue. You get 6hrs a day to use and fill at the cheap rate...
@goody you do have a low loss header - straight from your schematic
Small update on the findings from the data My calcs say that the days at 1 and 2 degrees were about 25% and 20% more efficient without the LLH. Ho...
@chrislay I'm not sure who is that way. Maybe @heatcol?
@benguela as an FYI I thought you'd be interested to know my system is the same as the one your proposing My batteries are charged house side and ...
@chrislay I just took the punt I didn't need the LLH and straight piped the connection with ball valves - that way if I ever need to put it back, I ca...
@benguela no worries. I've got two Sofar ME3000SP inverters. But I'll also be selling those to upgrade to 100amp charging/discharge inverters.
Latest Posts
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread
Now that really is nuts. Hopefully tech support dont s...
By JamesPa , 2 minutes ago
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RE: Replacing my 18 month old Hitachi Yutaki ASHP
Yes but it reaches a higher temperature than the previo...
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😉 Yes, the signature goes everywhere... "Home P...
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RE: Electricity price predictions
Yep, that makes total sense, competition will be the bi...
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RE: Solis S6-EH1P8K-L-PLUS – Why I Chose It and What I’ve Learned So Far
@batpred Thanks. Hardware wise, you just used a st...
By Bash , 2 hours ago
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@f1p, sorted, on a android phone Just swaped from ...
By @sand , 3 hours 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 ...
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RE: Trying to understand my Nibe F1245
First of all you have one of the best geothermal heat p...
By greenlight , 5 hours 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 , 15 hours ago
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Thanks for your response. I have UFH downstairs and ...
By GeorgeA , 16 hours ago
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RE: Grant Aerona Short Cycling
Hi, I have a Grant 10kW (nominal 9kW for the UK), whi...
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RE: Home energy storage & battery register
2 days uninterruptible power supply (at the moment) wit...
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We have a Vaillant aerotherm with sensocomfort. We have...
By Newbie , 20 hours ago
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@trebor12345 Yes, expect defrost cycles to initiate at ...
By IaAck , 20 hours ago
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I would probably have them in white as that would match...
By Grantmethestrength , 20 hours ago
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RE: Hitachi Yutaki SCombi Heat Pump - Owners
@sim0n0 Sorry to hear that. Putting the past aside w...
By JamesPa , 21 hours ago
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RE: MelCloud "Mixing tank temperature"
This post, on my 'diary' thread, might be of interest i...
By Sheriff Fatman , 21 hours ago
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RE: Heat Pump Training vs. Real-World Installation
Thank you for doing that, @editor, and for writing this...
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