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Last seen: Oct 16, 2024
@kev-m I think that’s a fair challenge and has been bought up on that site too, I didn’t write the content, just contributed my experience with the in...
@greekgoddj @transparent was referring to a thermal storage to hold energy, this is different to the basic DHW cylinder. Check out this article where ...
@jonathans good spot. I did contribute to that post over on the OVO forum. I was initially a causality of a poor installer but after a lot of to and f...
@peterr I’m part of a trial looking at retrofitting ASHP to properties and my system was audited. The external insulation on the flow/return was picke...
@toml1981 I have a four bed house, obviously could be lots of other differences, but I’ve been running my system as Derek describes for the last two w...
@alec-morrow welcome to the forum, I’ve only been here a few weeks. As a casualty of an underperforming ASHP controlled by a dodgy thermostat it’s goo...
Thanks Derek Ive used your numbers, I don’t think they are far off my pump, the Daikin is smaller but isn’t quite as efficient, so close enough for ...
Not sure it makes much difference but the total emitter output at deltaT50C is 21500w, another thing incorrect on the original installers heat loss re...
@derek-m I've put my numbers in to your modelling sheet. Not entirely sure I understand what is that's going on, but if I'm reading it correctly I ...
Hi Derek I balanced the system about a month ago but it's not been done by a professional. I've watched some YouTube videos and have a IR thermomete...
@saenergy My controller is set to a 7C differential but I'm definitely not seeing that differential at the lower leaving temperature, though the ho...
@derek-m Hi Derek I would be good to try some different numbers in a modelling tool. Are you able to send me a copy please? COP still hovering ...
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Latest Posts
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RE: Anyone concerned about GivEnergy?
An incredibly enlightening piece on the subject by @maj...
By Mars , 2 hours ago
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Home automation and the cloud; is there a better way?
You’ve just had a brand new system installed (heat pump...
By Majordennisbloodnok , 2 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 , 2 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 , 4 hours ago
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Its good kit the Midea and significantly cheaper, you w...
By ASHP-BOBBA , 7 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 , 7 hours ago
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Contractors pack for inta antifreeze valves are around ...
By ASHP-BOBBA , 7 hours ago
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RE: Renewables & Heat Pumps in the News
Critics and naysayers will be negative whatever the gov...
By JamesPa , 7 hours ago
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RE: Microbore heat pump installs
In principle you are almost certainly right, but in pra...
By JamesPa , 17 hours ago
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RE: Electricity price predictions
@old_scientist We are a low mileage home, so bulk of ou...
By ChandyKris , 18 hours ago
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There are just too many unknowns for me to comment on p...
By Transparent , 20 hours 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 , 21 hours ago
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RE: Brand and installer questions for ASHP
Strange, perhaps it doesnt use modbus which the third p...
By JamesPa , 23 hours 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 , 1 day 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 , 1 day 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 , 2 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 , 2 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 , 3 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 , 3 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 , 3 days ago
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RE: Say hello and introduce yourself
@sonosppp welcome to the forums. I see you've posted in...
By Mars , 4 days ago
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RE: Guidance with installing a new heating system
@bobflux Great, thanks for the advice. The pipe has an ...
By Hamilton , 4 days ago


