Last seen: Mar 12, 2025
Just to add a bit of my experience with Aira. Their sales team is quite slick and very efficient. Within 1 week I had quote at a good price, and ano...
There's definitely some bull, but octopus did not cover themselves in glory either: it took 10 months and 2 surveys to even get to this stage, and at ...
It's all confusing. He tells me he's beholden by MCS calculations to get the grant, which he knows are too conservative as for instance my MVHR isn't ...
So I did my own HTC using 30 days Jan/Feb including the cold snap and it comes avg 3.3KW heat losses. That's even lower than the surveys . Even if I a...
@judith thanks did you install a 7kw and is it working as expected?
@bontwoody ooh that’s a great one thanks. Lots of geeky things to dig into
I did a review of the assumptions of the heat losses and a decent part of it is down to design temp, for Octopus and Aira they use 19 for hallways and...
@hcas well spotted - they were going to install a 8KW .
Latest Posts
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RE: Help with understanding my Mitsubishi Ecodan air source heat pump
@patch. I understand that this indicates the ASHP is ...
By Morgan , 52 minutes ago
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RE: Help me keep the faith with my air source heat pump installation
@adamk, in terms of ballpark pricing, if we assume a st...
By Mars , 1 hour ago
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RE: Air Source Heat Pump - Side Alley Suitability
@jamespa I used an assumed indoor temperature of 18C. I...
By Ad3628 , 14 hours ago
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RE: ASHP Ecodan L9 error - No Heating but Hot Water
That’s interesting, but obviously concerning also…. Do ...
By SUNandAIR , 15 hours ago
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RE: In the middle of an ASHP installation - a few questions (and issues)
Thank you @robs - that very useful data. The issue wa...
By Transparent , 18 hours ago
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RE: The Rise and Fall of Europe’s Most Generous Green Subsidy
@editor Attached images of external insulation. Think...
By Dwynwen , 24 hours ago
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RE: Hitachi Yutaki SCombi Heat Pump - Thermal Off's
@trebor12345 The Auto function is supposed to adapt au...
By Heatgeek , 2 days ago
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RE: The Great British Heat Pump Quiz
@allyfish thanks for the feedback and glad it was fun! ...
By Mars , 2 days ago
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RE: help sizing rads based on room by room heat loss
If its 1988W at DT 50, which is how most radiators are ...
By JamesPa , 2 days ago
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RE: Career change – entering the world of heating and heat pumps
@editor Mars, thank you. That's along the routes I was ...
By Lakey , 2 days ago
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@editor thanks Mars, it's a rare occasion I'm looking f...
By big_si , 2 days ago
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RE: Efficiency Concerns on newly installed Mitsubishi Ecodan 8.5kW
@ashp-bobba and @jamespa - thank you both for all your ...
By CBrenewable , 3 days ago
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Win one of five "Heat Pumps 101" Courses
Heat pumps are gaining traction in the UK, but between ...
By Mars , 3 days ago
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RE: Agile: average import cost vs other tariffs?
@toodles thanks for the analysis. I'll be really intere...
By Old_Scientist , 3 days ago
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RE: Is this normal? Click of the DHW returning to space heating
@grantmethestrength Oh sorry to hear that, there should...
By ASHP-BOBBA , 4 days ago
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@ashp-bobba TBH the ladies are rather disorganised, so ...
By Cathyem1 , 4 days ago
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RE: Solar Power Output – Let’s Compare Generation Figures
And for those of us without an automatic irrigation sys...
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Logically, the lower frequency = more gentle, yes, but ...
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