Last seen: Dec 1, 2025
@mike-patrick I have the same Grant Aerona 10kW unit. You can used the controller to access some real-time data, but it's approximate and rounded. Tha...
Oh dear, that's a worry. The Grant engineer doesn't know how the Chofu/Grant ASHP works. It has a fixed speed/head curve pump, flow rate is constant r...
@jeff thank you. The above might just as well be carved on the tombstone of the Government BUS scheme when they quietly scrap it later this year./p> ...
@sunandair Derek is bang on. More flow on the secondary side than the primary means cooler return water from your radiators mixes with primary heated ...
It's worth noting that the destructive failure tests in the video were on battery cells not encased in any housing or enclosure.
@dak51 interesting. Sadly the talk of BritishVolt's planned EV battery manufacturing plant at Blyth now has a very hollow ring. I have a 6.5kWh Grow...
OK, first full monthly billing period with Cosy Octopus, and, combined with a 6.5kWh battery charged at cheap rate periods, it has saved me 25% compar...
Grant make the assumption that higher leaving water temperatures have a higher delta T between flow and return, compared to lower temperatures. For th...
The economy of manufacturing scale comes into it, with Octopus' backing, RED will have more purchasing power for the major ASHP components. I'm person...
@marvinator80 good on them. I wish my installer hadn't now, as it adds nothing and probably robs efficiency. It may be coming out one day. I don't nee...
@marvinator80 WOW! Absolutely fantastic. Very tidy.Out of interest, did your installer fit a low loss header and secondary pump or not? I don't see on...
That's pretty good. I'm sitting around 920kWh for the last rolling month, but that's mains power. My solar PV contribution has been around 150-180kWh ...
Latest Posts
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RE: Are Water Companies Delivering Bricks?!
I also couldn't do without a water softener when I live...
By Morgan , 6 minutes ago
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RE: Grant Aerona circulation/system pump staying on
My parameters are: 42 00 = 0 (so the next three value...
By MikeFl , 10 minutes ago
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RE: Electricity price predictions
My apologies. I should've written "The number and dep...
By Transparent , 38 minutes ago
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RE: Solar panels on side of house to heat water
I wouldn’t try a direct linked system of DC at all sinc...
By Judith , 50 minutes ago
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RE: Replacing my 18 month old Hitachi Yutaki ASHP
JamesPa Below is the plot of yesterdays run (30 Nov). ...
By trebor12345 , 54 minutes ago
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RE: Flow rate discrepancy between ASHP and manifold
@ashrolls Air circulating in the system will confuse fl...
By bornagain , 1 hour ago
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RE: Help…my NIBE heat pump has faulted again!
If it happens only when it gets cold then it maybe that...
By JamesPa , 1 hour ago
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RE: Grant Aerona3 - Home Assistant control via Modbus
Has anyone got past this screen to set up the integrati...
By AlanW1212 , 1 hour ago
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RE: Testing new controls/monitoring for Midea Clone ASHP
Hi all, Brief update on this now that I've had a bit ...
By benson , 2 hours ago
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RE: Heat Pump Training vs. Real-World Installation
@lucia have you discoveredfor how green each of our ene...
By Judith , 2 hours ago
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RE: Diagnostic Data Needed for Repeatedly Failing Tesla Powerwall 3 System
You seem to be on the right track... Installers are rec...
By Batpred , 10 hours ago
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RE: Should Our Water Circulation Pump Be Configured to Run All The Time?
there's a detect cycle setting (4200) on the old grant ...
By damonc , 12 hours ago
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RE: Commencing on an ASHP Installation Process
@sheriff-fatman It's also worth highlighting that th...
By Lucia , 13 hours ago
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RE: Hitachi Yutaki SCombi Heat Pump - Owners
. It does but, unless there has been a firmware updat...
By JamesPa , 16 hours ago
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RE: Help me keep the faith with my air source heat pump installation
Yesterday it was chilly and the cosy6 had a Cop of 4.3 ...
By AgentGeorge , 18 hours ago
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RE: Solar Power Output – Let’s Compare Generation Figures
@toodles Same here! This month 187kw.
By Andris , 18 hours ago
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@jamespa Ah, they do indeed do firmware updates very oc...
By Toodles , 23 hours ago
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I’m trying to rule out a fault, could owners of above c...
By Unsure , 23 hours ago
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RE: Jokes and fun posts about heat pumps and renewables
And I thought I was the one with the taxi on speed dial...
By Majordennisbloodnok , 1 day ago
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RE: A2A vs A2W: Which Heat Pump Would You Pick?
The problem I see with A2A (and I'm interested if there...
By Temperature_Gradient , 2 days ago
