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Last seen: Mar 23, 2026
@macfxd LLH = Low Loss Header - it's on the right of your 2nd picture, and has 4 connections. The two on the left are the flow/return from your ASHP...
My HP is set to "not supply any heat" above 19C external temp i.e. that's the top end of the WCC and above that it'll not run the pump. This isn't "of...
Hi, and welcome to the forums. Your installation looks nicely insulated, and according to the Grant standards with a LLH involved (whether this is g...
I was already fairly interested in low-carbon impact alternatives, and has just moved into a house with an ancient LPG boiler. The existing LPG tanks ...
I have just switched my home insurance to Aviva, from LV. To echo what @technogeek said a while back, their policy wording makes no mention of "boiler...
@crimson Hi. About 20 (30?) years ago it was important that the TRV was on the flow side of the rad, and there was an arrow on the TRV body to show wh...
My figures thus far (just for heating and DHW). Installation in April 2023, but only gathered figures from June. Month kWh Average Outdoor T...
"You need a gas boiler, mate" "The nearest gas pipe is 15 miles away" "..." "..." "Yeah, so you need a gas boiler."
House is a converted bungalow, downstairs being around 100sqm; upstairs 40sqm (just 2 bedrooms up there). Downstairs is mainly open plan, with living ...
I've looked through all 4 documents they send me for 'boiler', 'heating', 'air', 'pump', and can't find any specific reference, apart from saying that...
@allyfish Not to de-rail this topic (so I'll probably post results - if any - on a new topic) but I've just started trialling a scheduled 2°C drop of ...
@tobyg Just to buck the trend, I'd go for the Grant. Now, I have a Grant 10kW and it's proved quite tricky to set-up and get what's needed out of it, ...
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 , 53 minutes 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 , 1 hour ago
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@derbygraham fully agree with James, and it’d be good t...
By Mars , 1 hour ago
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RE: Indevolt Batteries UK Support & Info Thread
Finally got around to installing and setting up the Sol...
By Mars , 1 hour ago
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Unfortunately its a function of the physics. Max heat ...
By JamesPa , 3 hours ago
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RE: Microbore heat pump installs
In principle you are almost certainly right, but in pra...
By JamesPa , 3 hours ago
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RE: Electricity price predictions
@old_scientist We are a low mileage home, so bulk of ou...
By ChandyKris , 4 hours ago
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There are just too many unknowns for me to comment on p...
By Transparent , 6 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 , 6 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 , 8 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 , 11 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 , 14 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 , 1 day 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 , 2 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 , 2 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
