Last seen: Dec 1, 2025
@iancalderbank Yup, tried that, but the tank maxes out at 55degC indicated on the cylinder. The immersion thermostat cuts in and it then cycles on tha...
@derek-m thanks. The immersion heater thermostat on Grant cylinders is pre-set to 65degC and it cycles on/off on that. However, the separate cylinder ...
Much of the struggle with ASHPs in winter is the defrost method. ASHP Evaporator coils have very narrow fin pitch, 1 to 1.5mm. That gives a large surf...
You may need a mains pressure regulator on the cold water inlet to your house. The pre-plumb cylinder inlet manifold has a 3bar pressure relief valve ...
This is interesting @sunandair. The basic weather compensation, relying solely on instantaneous outdoor dry bulb temperature, is crude. I've wondered ...
This is interesting @sunandair. The basic weather compensation, relying solely on instantaneous outdoor dry bulb temperature, is crude. I've wondered ...
@marvinator80 it does this with my 10kW. Algorithm within the ASHP as it monitors air and return water temperature. It’ll turn the ASHP off for a leng...
I think it's a monobloc unit, R410A. See here:which is probably why they are getting flogged off cheap by the likes of Appliances Direct, to unsuspect...
With a DIY install you've got the option for heating and also cooling via fan coil units, which under the MCS approach isn't an option. However, these...
Yeah, exactly my concern. What are the briquettes made of (waste product or felled timber) and how much CO2 and energy goes into their process that pr...
I've looked at this company several times but never taken the plunge. They get good reviews. My only concern is the Lekto supply chain is opaque, they...
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RE:Help…my NIBE heat pump has faulted again!
Thanks both. We’re going to contact the people who last...
By Fiona , 9 minutes 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 , 15 minutes ago
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RE: Flow rate discrepancy between ASHP and manifold
Have you got a buffer tank, low loss header or plate he...
By JamesPa , 27 minutes 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 , 9 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 , 11 hours ago
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RE: Replacing my 18 month old Hitachi Yutaki ASHP
JamesPa. Thats one thing that I do have right. Cross ...
By trebor12345 , 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 , 12 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 , 14 hours ago
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RE: Solar panels on side of house to heat water
Not a problem, @toodles; introducing another option bac...
By Majordennisbloodnok , 15 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 , 16 hours ago
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RE: Solar Power Output – Let’s Compare Generation Figures
@toodles Same here! This month 187kw.
By Andris , 17 hours ago
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RE: Grant Aerona circulation/system pump staying on
@mikefl thanks, so to check is your parameter 4200 set ...
By damonc , 17 hours ago
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Are Water Companies Delivering Bricks?!
Please look away now if you don’t wish to lose several ...
By Toodles , 17 hours ago
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@jamespa Ah, they do indeed do firmware updates very oc...
By Toodles , 21 hours ago
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I’m trying to rule out a fault, could owners of above c...
By Unsure , 21 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
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RE: British Gas vs Octopus Energy vs Heat Geek vs EDF vs Aira vs OVO vs EON.Next vs Boxt
@temperature_gradient I specifically explained to my po...
By Toodles , 2 days ago
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RE: Grant Aerona Short Cycling
@damonc I was refering to the 'standard' energy sticker...
By MikeFl , 2 days ago


