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robl
@robl
Member
Honorable Member
2570 kWhs
Joined: Mar 23, 2022
Last seen: Mar 4, 2025
Profile Activity
Topics: 1 / Replies: 198
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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
Reply
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
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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)
Reply
RE: Undersized ASHPs & Unbelievable energy bills

@cathoderay You could try turning all rad TRV's off except one, confirm that one works as expected, move through them all one by one? Our plumbin...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Undersized ASHPs & Unbelievable energy bills

@cathoderay Great the PHE seems to be ok! Any pipes outside clearly need to be lagged, but indoor ones probably not. Any pipework inside the ther...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Undersized ASHPs & Unbelievable energy bills

If you have a PHE, then there will be a temp drop between the two separate liquids, and this temp drop is what pushes the heat flow from one liquid to...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Undersized ASHPs & Unbelievable energy bills

Usually heat exchangers used in plumbing are bphe (brazed plate heat exchangers). They have two connections at each end, and should always be used in...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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