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Last seen: Oct 12, 2026
No vibration issue. However when its minus temperatures and compressor modulation >80% there is noticeable compressor noise. The rest of the time...
My single Mitsubishi ilife2, which is otherwise perfection, suffers from exactly this problem and the threshold (30C) isn't adjustable. I've just (ye...
The first chart in your post above shows average 0.25kWh consumption. The second confirms that the unit is delivering less than 1kW output. Yet the ...
You should be getting better than that at this time of year even though it will be cycling, unless it's really cycling a lot (short cycling). Can you...
I run my Vaillant on either expanded mode (either end of the season when solar gain is a 'problem') or no room influence. Certainly on 'no room influ...
You are correct you dont need the second pump if there is no LLH/Buffer (unless there is a 'head' problem with your downstream system) Its entirely ...
He may need to tweak a couple of settings. There is definitely on the r290 a setting for no system separation/buffer/llh. Don't know what it does (I...
I love (and will use) that analogy!
Where is the noise coming from. If its the pump then perhaps somehow put some insulation around the pump. If its the rads, is it the valves. or the ...
If you are asking what is available to the non geek householder to optimise for ToU tarrifs, its Homely, Havenwise or Adia. To the best of my knowled...
Yes. I expect Grant specify a 'minimum system volume' which is the minimum permitted engaged (ie open) volume including the volumiser. Most manufact...
Which is logical, albeit 30l is a bit small. The manual it seems is clear which trumps anything the installer says and TBH anything the grant helpli...
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Latest Posts
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RE: Does anyone have experience of a smart water meter?
I attempted to create a thread about smart water meters...
By Toodles , 9 minutes ago
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RE: Why are ASHP installs so expensive?
I'd seen a reference to that on my google feed...
By ian33a , 17 minutes ago
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RE: Renewables & Heat Pumps in the News
I agree, but with a caveat. I remember some time ago ...
By Majordennisbloodnok , 33 minutes ago
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RE: Replacing Storage Heaters with a Heat Pump in a Stone Cottage
I found some interesting data about the price of heat p...
By Rob of York , 2 hours ago
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RE: Air-to-Air Heat Pumps & Air Conditioning: UK Heating and Cooling Q&A
Thanks for that, quite interesting. I liked the bit a...
By springswood , 3 hours ago
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RE: PV and battery long payback - sense check query
Thanks for all the comments. I finally got to the bott...
By DavidB , 4 hours ago
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RE: Indevolt Batteries UK Support & Info Thread
People following this thread who are hoping that plug i...
By JamesPa , 14 hours ago
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Safety study for plug in batteries out to tender - looks like Q3 2027 at best before legal
Whilst searching for other information I came across th...
By JamesPa , 14 hours ago
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RE: Passiv Smart Thermostat - Help & Forum Support
By Singlespeed , 16 hours ago
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RE: Help me keep the faith with my air source heat pump installation
just had Vaillant over to service the HP and asked abou...
By AdamK , 16 hours ago
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RE: tepeo ZEB UK Support & Info Thread
OK so ZEB is basically a variant on a storage heater, b...
By JamesPa , 2 days ago
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RE: Heat Geek installations: share your experiences
@editor I suspect that the Heat Geek online quote is a ...
By AndrewJ , 2 days ago
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RE: Adding additional Solar Panels to a DC coupled battery system
Ah, yes. Thanks for clarifying.
By Transparent , 2 days ago
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RE: Vaillant ecoTEC Plus - Flow Temp and Set Up
@trebor12345 I have been meaning to get home assista...
By Batpred , 3 days ago


