Last seen: Oct 2, 2025
The Grant units seem particularly keen to defrost around every 45 minutes when there's high relative humidity and the evaporator refrigerant temperatu...
@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 😉
@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...
@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...
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...
@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...
Depending on your weather compensation settings, disabling WC and reverting to constant leaving water temperature would work. Depends on what outdoor ...
@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 ...
Latest Posts
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RE: Air source heat pump roll call – what heat pump brand and model do you have?
Manufacturer: Worcester Bosch, Earth Save ProductsModel...
By Steelbadger , 32 minutes ago
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RE: Say hello and introduce yourself
Hello everyone. My partner and I recently had a Bosch C...
By Steelbadger , 47 minutes ago
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RE: Who's your electricity provider and what's your tariff?
Current supplier is Octopus, and we have been on Tracke...
By Scalextrix , 51 minutes ago
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RE: Why Air Release Valves and Deaerators are Non-Negotiable
@editor Are you saying that Brendon delivered a bodg...
By Morgan , 2 hours ago
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RE: Heat Pump Installers: Competence, Illusion and the Hard Truth Homeowners Must Face
@pirate-rich there’s a lot to do and plan, and the wish...
By Mars , 13 hours ago
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RE: Help me keep the faith with my air source heat pump installation
@adamk Its a bit complex: My 28mm primaries run for a...
By JamesPa , 15 hours ago
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Can you separate out the scop data between hot water an...
By Andrew J H , 17 hours ago
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RE: Solar Power Output – Let’s Compare Generation Figures
Further, these bar charts may throw a few more lumens o...
By Toodles , 18 hours ago
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RE: Heat pump and wifi kit connection.
Wi-Fi kit covers any Samsung device that has a modem in...
By Alfapat , 1 day ago
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RE: How to Understand Wiring Up a Heat Pump
I’m watched @pirate-rich rewire our wiring centre last ...
By Mars , 2 days ago
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RE: Sizing - Save me from my headache
If you get an R290 pump you should be able to heat the ...
By JamesPa , 2 days ago
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RE: Large heat pump options for church building
@aventus-eco Thanks Sean, will drop you a line.
By Josephiah , 2 days ago
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RE: Moving FIT array onto a Tesla Powerwall 3 possible?
@toodles that’s good news for @adamk
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RE: Samsung Gen 6 - Schedules not working
@technogeek That sounds very logical :-). I will give i...
By bontwoody , 2 days ago
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RE: Heat Pump + Tado Setup: Smarter Control for Secondary Pumps?
@pirate-rich thanks for the reply. If I were to explo...
By Lloydi , 2 days ago
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RE: Seal the Deal: Don't Let Your Heat Pump Leak Energy
@transparent I think the committee might get into some ...
By Toodles , 2 days ago
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Samsung ASHP Support in Midlands area?
Hi all, Per title.... can anyone recommend a ASHP ser...
By Andehh , 2 days ago
