Last seen: Mar 24, 2025
@bontwoody A lot of the reason the u value doesn’t scale with 1/wall thickness is because in-situ insulation also includes air boundary layers. Tha...
We have a small gshp, and in very cold weather the glycol out can be 0C, sometimes even -6C by the end of winter in a cold snap. Our rads run at 32C ...
I’d recommend getting a smart meter, and asking for daily or finer data. The highest daily gas use in kWh, divided by 24, will be the smallest heatpu...
I have an ohme commando plug charger, and I remember the test charge was a hassle with IO go. The smets 1 smart meter we have was stated as an issue ...
150W average overnight - in order that’ll be: fridgefreezer, mvhr, ftth router, water softener, loads of standby stuff. There’s no standby stuff tha...
We’re all elec too, and on a 100A single phase fuse. I haven’t considered changing it to 3phase - it would be simple though to fit even more PV ...
I made supports out of recycled plastic lumber, aluminium, and stainless screws for our flat epdm garage roof. The lumber is 40x40x3000mm from ‘filcr...
Our hybrid inverter is a sunsynk, and while it states the SOC monitored by the (Seplos mason) battery I’m pretty sure it uses its own voltage measurem...
‘Natural’ gas energy content is usually given at the Lower Heating Value (LHV). This value is not the total chemical energy, but assumes all water cr...
The choice of refrigerant is always a compromise. So far as I'm aware, they are generally: Poisonous / High GWP / ozone depleting / flammable / sup...
Compared to having ‘natural’ gas piped continuously into a home -a permanent gas source, the tiny amount of r290 kept safely in a heatpump for many ma...
I wanted to put our r290 gshp near a kitchen drain. And found to my dismay that it didn’t have a trap! Bit of a faff, but managed to swap it out for...
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RE: The Rise and Fall of Europe’s Most Generous Green Subsidy
What indeed? Not visited forums for some time, been in...
By Dwynwen , 2 hours ago
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RE: Hitachi Yutaki SCombi Heat Pump - Thermal Off's
Thank you this is very helpful. There is a lot to take...
By trebor12345 , 2 hours ago
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RE: In the middle of an ASHP installation - a few questions (and issues)
@jamespa they didn't provide any contract, or design pr...
By benson , 2 hours ago
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RE: The Great British Heat Pump Quiz
@allyfish thanks for the feedback and glad it was fun! ...
By Mars , 5 hours 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 , 10 hours 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 , 10 hours ago
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@editor thanks Mars, it's a rare occasion I'm looking f...
By big_si , 20 hours 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 ...
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Win one of five "Heat Pumps 101" Courses
Heat pumps are gaining traction in the UK, but between ...
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RE: Agile: average import cost vs other tariffs?
@toodles thanks for the analysis. I'll be really intere...
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RE: ASHP Ecodan L9 error - No Heating but Hot Water
@phoenix15 I'm no plumber so please don't take this as ...
By dnagre , 2 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 , 2 days ago
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@ashp-bobba TBH the ladies are rather disorganised, so ...
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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 ...
By SUNandAIR , 2 days ago
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RE: Ideal Logic ASHP - change from 55°C to 35°C Heating?
Good point. I’ll keep my eye on the manifold temperatur...
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RE: How hard and expensive would it be to change panel and add battery?
@transparent It is a setting that Octopus make via the ...
By Toodles , 2 days ago
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RE: Performance of Heat Pumps in Mild Weather
@heatgeek The flow rate isnt controlled by Mitsub...
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