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AllyFish
@allyfish
Contributor
Noble Member
4198 kWhs
Joined: Oct 31, 2022
Last seen: Mar 14, 2025
Topics: 22 / Replies: 456
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RE: Solar battery size- advice please!

@misterB consider tariffs such as Cosy Octopus that offer two 3hr low rates a day. If you can get an EV tariff then so much the better 😉

1 year ago
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RE: Grant Aerona 3 Help programing

@marvin91 there’s a separate post for weather compensation on Grant Aerona. It’s quite simple. You’ve got the Grant installation manual? It’s a redact...

1 year ago
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RE: Grant Aerona 3 Help programing

@mab I have external clunky digital room stat. I think Grant only use these because few if any of their installers understand how to program the Chofu...

1 year ago
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RE: Grant Aerona 3 Help programing

Hi there, just to clarify. On the Grant pre-plumb cylinder, the thermostat dial is the hot water thermostat - a simple on/off device to call for hot w...

1 year ago
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RE: Is the Grant controller a thermostat?

@mikefl I have a theory the closeness of the outdoor air sensor on the Grant Aerona's may be causing some adverse response. During defrost the outdoor...

1 year ago
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RE: Grant Aerona 13KW - can I boost it?

Depending on your weather compensation settings, disabling WC and reverting to constant leaving water temperature would work. Depends on what outdoor ...

1 year ago
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RE: Is the Grant controller a thermostat?

@roamingbull or disable weather compensation for a short period and revert to constant higher flow temperature. My 10kW Aerona is defrosting every 45 ...

1 year ago
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RE: Electricity price predictions

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...

1 year ago
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RE: Pleurococcus on my fins

There are specialist cleaning solutions for heat exchanger fin coils. I would recommend you have the heat exchanger cleaned as part of a professional ...

1 year ago
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Cosy Octopus compared to standard flex rate tariff

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...

1 year ago
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RE: Is the Grant controller a thermostat?

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 ...

1 year ago
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RE: Is the Grant controller a thermostat?

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...

1 year ago
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