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robl
@robl
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Honorable Member
Joined: Mar 23, 2022
Last seen: Apr 24, 2025
Profile Activity
Topics: 1 / Replies: 202
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Reply
RE: 14kW Midea ASHP in an old leaky building

@derek-m For older heatpumps or fridges that don't have an inverter, starting up the compressor is quite stressful, the unit literally twists on th...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 14kW Midea ASHP in an old leaky building

@cathoderay Often these days you can borrow a thermal camera, lots of organisations have them. Eg. Cambridge Carbon Footprint will lend one out fo...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 14kW Midea ASHP in an old leaky building

Bear with me on this…. Most base things we measure are quantities, not rates… Miles, kg, apples, bananas. The rate for miles is then in miles per hou...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Looking to make our 2 bedroom Victorian mid-terrace house greener

@chickenbig You can borrow a thermal camera from Cambridge Carbon Footprint, free:-). They offer training courses too, free:-). I’m in Cambridge,...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Advice on reading thermal images

@heat-pump-newbie Yes, just as you say it’s terrible with metal surfaces. You can sometimes program in the emissivity, I think ‘mine’ defaults to ...

3 years ago
Forum
Well & Truly Off The Grid
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RE: Advice on reading thermal images

@editor I use my companies Flir camera - I think it's E40, or something like that. It was pricey (£5k), but that was ages ago, they're all much ch...

3 years ago
Forum
Well & Truly Off The Grid
Reply
RE: Battle of the charging technologies

I remember listening to a keynote talk in a conference by Renault about 5 years ago, where they said the same thing - that the future of EV cars invol...

3 years ago
Forum
Renewable-powered transport (EVs & e-bikes)
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RE: Anyone want to share costs on batteries?

@Transparent I did see the Cenex report, and yes that is the trial we are on. For me the report lacked in engineering detail about CO2 saved due to...

3 years ago
Forum
Energy Storage
Reply
RE: Battle of the charging technologies

We have a V2G wallbox, for our leaf, on a trial with Ovo. So far as I’m aware, there are just a few small scale trial V2G to date similar to ours, us...

3 years ago
Forum
Renewable-powered transport (EVs & e-bikes)
Reply
RE: Anyone want to share costs on batteries?

We have 4kWp of (mcs) solar, and subsequently a V2G unit by Indra for which there is a G99 A1-1 form stating the overall export is <16A per phase, ...

3 years ago
Forum
Energy Storage
Reply
RE: Ice Energy Step Controller Settings

Hi Alan Do you have an EPC, does that agree with the 45MWh/year heating + DHW? Has your electricity consumption been similar after the units wer...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Vaillant Arotherm Plus issues - circulation, efficiency and performance

I suspect it is very common for installers to avoid using weather compensation, and instead set a constant high flow temperature. It makes for a quic...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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