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Last seen: Mar 16, 2026
I played 'stick' rather than 'twist' this summer. I would normally have flipped from Cosy to Agile, but to be honest I decided I 'CBA' to check the Ag...
A good question @toodles. My old open thermal store and oil boiler chugged away quite happily, if expensively, unpressurised. But the header tank was ...
Hi @martingale, welcome! You can't really have too big a DHW cylinder, but you can have one too small. If it's well insulated modern unvented cylinder...
Hi @morganr, welcome. Interesting post. I looked at the Adlar literature. One thing jumps right out, this diagram, which is plain wrong. I need to c...
@iaack of course, you're right, but that's not the market the OEM of 'Heat Saviour' is targeting, They are targeting retrofit ASHP heat pump market, s...
EH? so this is a water to water primary to secondary plate heat exchanger, [PHE] buried in a unit to sit under the DHW tank. So it compels every insta...
@chandykris our experience is that the BESS added to the solar retrospectively is a financial game changer. During the heating season we schedule ch...
Hi @chandykris, we have two 6.5kW Growatt batteries, they do take a long time to charge the last 5% or so. It's a reduction in charging power as the b...
No surprise the Telegraph has jumped to their predictable hasty conclusion. The subject of grid supply and demand balancing and grid resilience is a c...
That was fun, thank you @editor. 85%, which is just as well after 35years in the HVAC industry. Some careless answers on my part, and maybe a couple o...
@jamespa yhey probably are, as EN 14511 prevails in the UK and EU. That said, it was the COP data at identical A&W temperature combinations that w...
Latest Posts
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RE: Renewables & Heat Pumps in the News
@editor, I hear that too. I can confirm that out of ...
By ASHP-BOBBA , 5 hours ago
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End-of-Life Heat Pumps: How Do You Dispose of an ASHP in the UK?
As many of you know, our Global Energy Systems heat pum...
By Mars , 5 hours ago
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@derbygraham fully agree with James, and it’d be good t...
By Mars , 5 hours ago
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RE: Indevolt Batteries UK Support & Info Thread
Finally got around to installing and setting up the Sol...
By Mars , 6 hours ago
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Unfortunately its a function of the physics. Max heat ...
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 , 7 hours ago
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RE: Electricity price predictions
@old_scientist We are a low mileage home, so bulk of ou...
By ChandyKris , 8 hours ago
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There are just too many unknowns for me to comment on p...
By Transparent , 10 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 , 10 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 , 12 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 , 15 hours 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 , 18 hours ago
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RE: Mitsubishi Ecodan not good enough ?
Thanks @goody, appreciate the feedback and sorry you ha...
By marcexec , 1 day 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 , 2 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 , 2 days ago
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RE: Anyone concerned about GivEnergy?
Many thanks for your, and the subsequent, answers tk qu...
By KevH , 2 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 , 3 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
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RE: Daikin Altherma 3 LT compressor longevity question
@optimistic-optimiser I have has a Daikin for a few yea...
By madsid , 4 days ago
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RE: UK DIY Battery: SEPLOS 48V 200Ah x2 + Sunsynk 8K – Safe Installation for Garage Conversion
The rule of thumb is to ensure that you can isolate any...
By Transparent , 4 days ago
