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Last seen: Jun 13, 2026
@roamingbull or disable weather compensation for a short period and revert to constant higher flow temperature. My 10kW Aerona is defrosting every 45 ...
Welcome to the Cosy corner @Toodles. We pay an average of 20.4p/kWh including VAT & standing charge. 88% of our electricity import is at the low r...
There are specialist cleaning solutions for heat exchanger fin coils. I would recommend you have the heat exchanger cleaned as part of a professional ...
Hi all, crunching year end numbers. I'm on 'Cosy Octopus' 3 tier tariff, and in the winter heating season I schedule charge my 13kW of solar PV batter...
Little spread sheet to play with here , you can change your 2102 max LWT and 2103 min LWT parameter settings in this and see what it does. It shows ...
Yup, 2102 is the main parameter you need to adjust, if you find the house not keeping temperature as the outdoor temperature lowers, then raise 2102 b...
(hope you don't me chiming in here @derek-m as a fellow Grant owner) @roamingbull, check 2100 is set to 1, and as a default I would set 2101 to 45degC...
@mikefl this is really informative, and echoes many of the experiences of those of us who have had Grant ASHPs installed. So you're yet another Grant ...
Link to weather compensation adjustment for Grant Aerona./p>
@bontwoody well done in helping a vulnerable person out. What a monumentally stupid controller installation location. Do you know who the installer wa...
@jamespa it’s madness isn’t it? My neighbour’s oil boiler flue is particularly noisy with a pure tone aspect. It’s the dominant noise source when stoo...
@cathoderay the data is my daily electricity consumption, you'll just have to trust me on that. Tried keeping ASHP on overnight vs switching off overn...
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Latest Posts
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RE: Heat pump installation quotations
That will be absolutely murdering your energy efficienc...
By EtchedPixels , 4 hours ago
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RE: Harvest Thermal - ASHP with a smart thermal battery
The cooling side works much better if you can figure ou...
By EtchedPixels , 4 hours ago
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Floor standing brackets for K3 rads
My neighbour is a plumber and said I would need to fit ...
By Singlespeed , 5 hours ago
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After an intense recode, I’m pleased to announce that w...
By Mars , 5 hours ago
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Why do you want to maintain a specific deltaT? The out...
By JamesPa , 6 hours ago
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Hopefully this will answer your question. To...
By ASHP-BOBBA , 7 hours ago
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RE: Help me keep the faith with my air source heat pump installation
I would be interested to find out if others do this and...
By ASHP-BOBBA , 7 hours ago
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Don't you dare. You just carry on as you are; as @batpr...
By Majordennisbloodnok , 9 hours ago
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RE: Heat pump design review please: 5 kW Vaillant aroTHERM Plus heat pump
@ragtime27 some rooms in our house only have one place ...
By Judith , 9 hours ago
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RE: Several AC coupled batteries
That is a good point, a manufacturers can stop trading,...
By Batpred , 13 hours ago
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RE: Indevolt Batteries UK Support & Info Thread
Hi @hanno - good question. The range of hybrid invert...
By Transparent , 13 hours ago
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RE: GivEnergy inverter tripping due to over-voltage?
@transparent the inverter was installed in 2021 and afa...
By Tim441 , 14 hours ago
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RE: Say hello and introduce yourself
I hope so, @toodles. It's not often that we see a situa...
By Majordennisbloodnok , 17 hours ago
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RE: Electricity price predictions
Good point, I do expect the bonus of putting my energy ...
By Batpred , 2 days ago



