Last seen: Nov 8, 2025
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...
Volumiser totally different to buffer or llh. Volumiser 2 ports, buffer/llh 4, volumiser doesn't cause system distortion, doesn't penalise COP, buffe...
Latest Posts
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RE: Grant 13kW Aerona3 - issues getting zones to temp
Definitely. 8C DT is higher than the default design DT...
By JamesPa , 38 minutes ago
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RE: Testing new controls/monitoring for Midea Clone ASHP
This is one of the reasons why AI will be the death of ...
By cathodeRay , 3 hours ago
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@jamespa Thanks again for your reassurance. Rob
By Ubert767 , 5 hours ago
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RE: Oil Boiler & Heat Pump Hybrid System
Thanks for the suggestion, but farmhouse is grade 2 lis...
By paultheheating , 7 hours ago
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RE: My DIY Heat Pump installation
This is very kind. However software is not really my ...
By Polar bear , 12 hours ago
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RE: Request for feedback on where we're at with our quest to get an ASHP or ideas.
thanks, heatpunk looks great, being able to do the calc...
By giryan , 1 day ago
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RE: Is Your House Warmer Upstairs Than Downstairs?
Why arent you expecting them to make much difference. ...
By JamesPa , 1 day ago
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@toodles sounds good. I started with cosy but then plug...
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RE: Aira Heat Pump: Stylish Scandinavian Heating
It has been just over a year since we changed over to a...
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RE: Finding a Thermostatic Shower Valve That Works with Heat Pump Systems
@morgan I should just have written ‘Mea Culpa’ shouldn’...
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RE: Are We Sleepwalking Into Another Race to the Bottom?
'We learn from history that we do not learn from histor...
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Mitsubishi Ecodan FTC7 Legionella date set
I can set the number of days between Legionella cycles ...
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RE: When to use Octopus Intelligent Go tariff with my heat pump and battery
@treewizard Yes, I like the extra facilities that NetZe...
By Toodles , 1 day ago
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RE: Help me keep the faith with my air source heat pump installation
@adamk downstairs rads are less prone to airlocks, you ...
By AgentGeorge , 2 days ago
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RE: My Octopus Cosy 6 Heat Pump Journey: From Quote to Completion
@editor thanks for highlighting my name. Yes I did get ...
By Chansug , 2 days ago
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RE: balancing radiators with a mixture of different size pipework and a few undersize rads.
@editor Thanks for your input Mars. No I think the comm...
By baxtDave , 2 days ago
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RE: Rate the quality of your heat pump design and installation
We’re looking to expand our list of recommended list of...
By Mars , 2 days ago
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RE: RDSAP10 effect on existing heat pump EPC rating?
@transparent Along with the right workers, they can’t b...
By Toodles , 2 days ago
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RE: Midea ASHP – how to set weather compensation
I have just looked at my heat pump 'long interval' (27 ...
By cathodeRay , 2 days ago
