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robl
@robl
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Honorable Member
Joined: Mar 23, 2022
Last seen: Oct 2, 2025
Profile Activity
Topics: 1 / Replies: 204
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Reply
RE: 10.5kW unit that needs a new compressor

The compressor is brazed to copper pipes - brazing is basically much higher temperature soldering, joining copper pipes together with a dissimilar met...

3 years ago
Forum
Grounds Source Heat Pump (GSHPs)
Reply
RE: A beginner's journey into DIY home energy storage - no solar!

@transparent We have a 100A fuse now, and 25mm^2 tails. It was originally a 60A fuse. I think the cable into our property was installed during ho...

3 years ago
Forum
Energy Storage
Reply
RE: A beginner's journey into DIY home energy storage - no solar!

@transparent Our area is leafy suburbs, all originally 4 bed 1960s build houses with initially 60A single phase underground cables. I’m afraid I ...

3 years ago
Forum
Energy Storage
Reply
RE: 2 heat pumps - 1 as a slave

@catherinehh Is weather compensation active? While you require on average a lower heating power when it is say 10C outdoors, without weather compe...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: A beginner's journey into DIY home energy storage - no solar!

@transparent What I asked for, and what I hope they think is happening too, is that we can consume whatever we like up to 100A, and that the overal...

3 years ago
Forum
Energy Storage
Reply
RE: A beginner's journey into DIY home energy storage - no solar!

We have just had permission to fit an 8kW Sunsynk hybrid inverter from UKPN. We have a single phase supply, 100A fuse, existing 4kWp PV with existin...

3 years ago
Forum
Energy Storage
Reply
RE: Questions about yearly heat pump maintenance

There’s usually a survey, to check if the boiler/heating works, but it’s written as ‘can’t check’ unless it’s actually running when there’s a flying v...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat pump and a solar diverter. Is it logical?

iBoost (and other diverters) are tricky to make work well with home batteries. If you have a home battery, you are likely to use a smart tariff - ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Octopus Energy Heat Pump Quote

@iancalderbank The code is entirely running in a loop; it measures flow rates, temperatures, then electicity meter pulses, then does it again. The...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Octopus Energy Heat Pump Quote

@squeakysim The monitoring is all my own 😎 Two off +/-0.1C temperature sensors, each in copper "pockets", and a flow meter, and a little embedded...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Replacing a gas boiler with a heat pump is "irrational"

I agree that it's unlikely that with the present electricity/gas cost ratio that heatpumps are "financial rational", which is the premise of the link....

3 years ago
Forum
Government Schemes, Regulations, Planning & Organisations
Reply
RE: Octopus Energy Heat Pump Quote

Mixergy tanks I believe work by forcing statification - hot water is pushed into the top of the tank, and there is a clear hot / cold divide line. In...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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