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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
AllTopicsReplies
Reply
RE: Say hello and introduce yourself

@gutoffowc Plastic heat exchangers are usually used inside MVHR units. For an air:air heatexchanger, there's not that much heat transfer needed ac...

2 years ago
Forum
Introductions, Forum Rules & Updates
Reply
RE: Rethinking the mindset for mass retrofit - a provocative idea

@iancalderbank I'd love to see MID certified meters installed under MCS, and then a guaranteed SCOP performance from it! I appreciate the meters c...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Rethinking the mindset for mass retrofit - a provocative idea

The blog on this forum compares installed SCOP to manufacturers datasheets, giving overall average of 2.7:

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Rethinking the mindset for mass retrofit - a provocative idea

I think that the price ratio of Electicity to Gas is largely responsible for the UK's reluctance to embrace heatpumps. I understand that it will come...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Say hello and introduce yourself

@gutoffowc It sounds like it needs more than recalibrating. Perhaps the original installers? We have a vent axia sentinel kinetic BH plus, it ha...

2 years ago
Forum
Introductions, Forum Rules & Updates
Reply
RE: Turning your heat pump off

Here’s an example of a mid certified meter- if you have a spare slot in your consumer unit, it’s an easy install for a sparky, split core so just clip...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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...

2 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...

2 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 ...

2 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...

2 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...

2 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...

2 years ago
Forum
Energy Storage
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