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Last seen: Mar 16, 2026
Hold fire until Feb if you can Jo as you'll get much lower VAT on batteries added to solar PV systems from then. Before then you'll have to pay full 2...
@mikefl - hello! I believe Homely's Grant/Chofu controller will have a true set-back function where the weather compensation curve LWT can be offset b...
This is familiar. All utility company customer service call centre flow charts relating to smart meters were a Friday afternoon job. All end with 'cha...
It's a two wire low voltage DC device powered from the ASHP. Grant tend to hide them away with the tank and use the primary side piping route to run t...
@jwilliams89 Likely under ECO4 the installers will fit the Grant Chofu controller, which comes as standard with the Aerona. The smart controller hasn'...
Done @editor, please confirm receipt. Average 46dB(A) SPL @ 3.5m for Grant Aerona3 10kW
Highly likely a Grant scheme installed under ECO4 will have a LLH and secondary circulating pump. They are not the most efficient system installation,...
Hi, some info on Grant website on user level parameter adjustment. Not had a look in detail, Grant are slowing realising that the installer manual is ...
@roamingbull hi there, as a comparison, I have around 155m2 of heated space, and the 10kW Aerona. I was hitting 50kWh per day last weekend in the exce...
WC works completely autonomously, it doesn't reference room temperature. Parameter 21 05 is the maximum outdoor air temperature at which, with WC enab...
In theory, yes. You may need to adjust the WC parameters, or the flow rate to certain emitters to fine tune it. Every house and heating system is diff...
[/quote] Hi again, if Weather Compensation [WC] works right then your heating will regulate based on that. Hive thermostats cycle the ASHP on and off...
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Latest Posts
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RE: Anyone concerned about GivEnergy?
Yes and no. Native controllers generally do a good jo...
By Majordennisbloodnok , 8 hours ago
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RE: A2A vs A2W: Which Heat Pump Would You Pick?
@temperature_gradient I've had air-to-air for just over...
By Anne Smith , 13 hours ago
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RE: Home automation and the cloud; is there a better way?
+1 It's not just cloud though. Many devices have repla...
By bobflux , 14 hours ago
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RE: End-of-Life Heat Pumps: How Do You Dispose of an ASHP in the UK?
We've started to document everything, and part 2 of the...
By Mars , 19 hours ago
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RE: Summer usage. Why is my Vaillant Aerotherm using so much energy on "heating"?
So the red bars are 'DHW' and the yellow bars 'heating'...
By JamesPa , 21 hours ago
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Its good kit the Midea and significantly cheaper, you w...
By ASHP-BOBBA , 24 hours ago
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RE: Indevolt Batteries UK Support & Info Thread
Have you tried cutting the grid feed to see what actual...
By JamesPa , 24 hours ago
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Contractors pack for inta antifreeze valves are around ...
By ASHP-BOBBA , 24 hours ago
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RE: Renewables & Heat Pumps in the News
Critics and naysayers will be negative whatever the gov...
By JamesPa , 24 hours ago
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RE: Microbore heat pump installs
In principle you are almost certainly right, but in pra...
By JamesPa , 1 day ago
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RE: Electricity price predictions
@old_scientist We are a low mileage home, so bulk of ou...
By ChandyKris , 1 day ago
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There are just too many unknowns for me to comment on p...
By Transparent , 2 days ago
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RE: What is the main ‘dictator’ of Agile’s unit price?
@toodles I keep an eye on wholesale prices and energy m...
By ChandyKris , 2 days ago
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RE: Brand and installer questions for ASHP
Strange, perhaps it doesnt use modbus which the third p...
By JamesPa , 2 days ago
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RE: Upgrading my system, how far do I go?
For comparison, my PW3 with 11.04kW inverter, will char...
By Old_Scientist , 2 days ago
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RE: Changes to Tesla Powerwall Charging Regime?
Elon gate - legendary! I take my hat off to you @toodle...
By Old_Scientist , 2 days ago
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RE: Mitsubishi Ecodan not good enough ?
Thanks @goody, appreciate the feedback and sorry you ha...
By marcexec , 2 days ago
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RE: Minimum and Zero Disrupt Heat Pump Installations
True (first sentence) Thats the reason to consider th...
By JamesPa , 3 days ago
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RE: High air source heat pump running costs – Vaillant AroTherm Plus
Quite right. I was using a rough guesstimate of doublin...
By Majordennisbloodnok , 3 days ago
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RE: My Grant R290 9kW Heat Pump Installation
Again, really don't know how accurate this is! &nb...
By petch , 3 days ago
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RE: MCS Quality Audit – Has Anyone Had One? Did It Lead to Remediation?
@toodles The whole scheme is a shocking waste of money....
By Papahuhu , 3 days ago
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RE: DIY or Don’t Touch? Solarman Smart Meter Install
Yes, and these guys would probably be my preferred inst...
By Batpred , 4 days ago
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RE: Hot water tank lose heat rapidly on random days
@jamespa Hopefully their reasons are well intended! ...
By Bash , 4 days ago
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RE: Ecoflow UK Support & Info Thread
As mentioned above, we’ve got our full review of the Ec...
By Mars , 4 days ago



