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Last seen: Apr 25, 2026
this has been modelled for the passive house planning package and as a result there are simplified values come out. Heat loss with no insulation under...
@jeegnesh some small points to supplement what James wrote above. First the easy answer on your OP. It is very normal to have huge electrical consum...
Our 7kW Vaillant is wall mounted, no problem neat installation, noise minimal. It’s on the Vaillant recommended brackets. It’s not absolutely simple i...
@jamespa I’m less inclined to believe the shift of taxes onto electricity was to cripple the transition as unintended consequences. There’s plenty of ...
We have the original FIT tariff (very nice indeed thanks) and it’s long since paid for. Without finding the paperwork it was ‘inflation linked’. So ...
@editor contuning your theme of MCS. I started reading the audit committee investigation on the insulation scandal and Ian Rippon was explaining how g...
@colinc good luck with your project! UFH is the absolute best from both comfort and ASHP efficiency. We have it in the extension and wish we had elsew...
Yes! Our method of working is one of us does the analysis/ research (which is me on renewable stuff) and the other checks the logic and arithmetic. It...
Quite honestly I don’t know. We’re very pleased with our system, and are gas free, so we save money each year. But the payback time (at current pric...
we have a 7kW Valliant which has been running quietly and well for a year with a very satisfying SCOP of 4.7. Other people have had noise issues eg @j...
I’ve been reading to find out about the Bosch and you’re learning fast. Just for info our Vaillant is giving a cop of 5-6 in this mild weather. Our de...
From the time I was a physics undergraduate it’s been 25 years off. I’ve now retired and it’s still 25 years off. So it’s had a lot of investment th...
Latest Posts
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RE: Summer usage. Why is my Vaillant Aerotherm using so much energy on "heating"?
I don’t know how the Aerotherm works so can’t comment o...
By AndrewJ , 10 minutes ago
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RE: End-of-Life Heat Pumps: How Do You Dispose of an ASHP in the UK?
I brought my old R407C water to water heat pump to the ...
By bobflux , 1 hour ago
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Its good kit the Midea and significantly cheaper, you w...
By ASHP-BOBBA , 2 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 , 2 hours ago
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Contractors pack for inta antifreeze valves are around ...
By ASHP-BOBBA , 2 hours ago
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RE: Renewables & Heat Pumps in the News
Critics and naysayers will be negative whatever the gov...
By JamesPa , 2 hours ago
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RE: Microbore heat pump installs
In principle you are almost certainly right, but in pra...
By JamesPa , 12 hours ago
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RE: Electricity price predictions
@old_scientist We are a low mileage home, so bulk of ou...
By ChandyKris , 14 hours ago
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There are just too many unknowns for me to comment on p...
By Transparent , 15 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 , 16 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 , 18 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 , 21 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 , 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 , 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 , 3 days ago
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RE: Anyone concerned about GivEnergy?
Many thanks for your, and the subsequent, answers tk qu...
By KevH , 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
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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 , 5 days ago
