Last seen: Oct 1, 2025
There have been a few discussions dotted around (e.g. I think Urban Plumber had a video on YouTube) where the 8.4 kW is not accounting for defrosts, m...
@heatgeek an interesting eureka moment - would provide what certainly sounds like a plausible explanation for the pump arrangement. I will likely ...
@jamespa @heatgeek I'm unsure as to the exact pump in the outdoor unit, but under the impression it is PWM. Flow speed can be adjusted on the pane...
@heatgeek I think it's also worth chucking out into the conversation that there are different degrees of cycling. I have a 12 kW Vaillant, and at t...
@sicky and therein lies the greatest difficulty the simpler the spreadsheet the more assumptions it's making for you. It certainly sounds like you hav...
@benson certainly removes them as an option! Have sent them a carefully worded query so will see what I get back in writing ...
@benson @richard24738 was this flagged by directly contacting them? My policy is up for renewal and I was about to renew as I couldn't see any exclusi...
Turned the setting off on mine as couldn't find anything anywhere that explained what it did with respect to ASHP (only mentioned to do with gas boile...
@old_scientist I made the jump to cosy the other weekend after a few days of lousy solar and no sign of cheap (windy) rates on agile for the weekend i...
@johnmo I did consider asking if you had found overall heat demand / electric usage had increased when you had reduced the cycle time but increased ov...
@johnmo Once you have the heat meter readings going in then hopefully you should be able to get the fully interactive read out (same as the heatpumpm...
Forum Handle: Declan90 Manufacturer: Vaillant Model: Arotherm+ 12 kW Type: ASHP Arrangement: Mono (Double Fan) Area of Country: Leicesters...
Latest Posts
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RE: Testing new controls/monitoring for Midea Clone ASHP
It has it's uses and there is no way I could have set t...
By benson , 4 hours ago
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Samsung Gen6 and Havenwise ........
I sourced the Wi-Fi unit (City Plumbing - £122 with 15%...
By Lenny , 4 hours ago
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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 , 6 hours ago
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@jamespa Thanks again for your reassurance. Rob
By Ubert767 , 11 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 , 13 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 , 18 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...
By Eliuccio , 1 day ago
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RE: Aira Heat Pump: Stylish Scandinavian Heating
It has been just over a year since we changed over to a...
By npru , 1 day ago
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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’...
By Toodles , 1 day ago
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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...
By Lawrence Leask FInstR , 1 day ago
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Mitsubishi Ecodan FTC7 Legionella date set
I can set the number of days between Legionella cycles ...
By DRB01 , 2 days ago
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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 , 2 days 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 , 3 days ago
