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Judith
@judith
Member
Prominent Member
Joined: Nov 28, 2023
Last seen: Aug 3, 2026
Profile Activity
Topics: 4 / Replies: 544
AllTopicsReplies
Reply
RE: My horrific Samsung heat pump installation and experience

I too understand reflection factors from a mW communications background and their use is completely inappropriate for water flow along pipes. Keeping ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Octopus Kraken

This is a more technical description by axleand I’m sure I’ve read a comprehensive description on Linked in without as much gush(easy to have less gus...

2 years ago
Forum
Electricity, Tariffs, Monitoring, Electrics & Providers
Reply
RE: Installing a heat pump in a Grade II listed property

Perhaps I’ve missed key points in this discussion but why would the OIT-IAT vary with how hard the pump is working in the general case? I can unders...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Business case for a battery?

I started off thinking of a battery need as to provide all 24hrs of electricity usage. But that not the right approach for us and since the battery al...

2 years ago
Forum
Energy Storage
Reply
RE: The Definitive Guide to Weather Compensation and Curves for Air Source Heat Pumps

We’re on Vaillant’s 0.55 curve which means 42C at -2C and around 30C at an OAT of 15C. The pump cycles about once an hour once it’s warmed up the ho...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Octopus Cosy 6 installation (fan boy video)

This is a better article to understand the carbon cost of steel

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Business case for a battery?

Neat analysis! Thanks

2 years ago
Forum
Energy Storage
Reply
RE: Octopus Cosy 6 installation (fan boy video)

Plastic is a wonderful material used in the right products. I believe that I’ve read that plastic buckets have saved countless lives in Africa and oth...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Business case for a battery?

How green is off-peak electricity is a relevant aspect because we can all choose an option which will help the planet even if it can’t be justified on...

2 years ago
Forum
Energy Storage
Reply
RE: Thermostats Accuracy

The best way to handle multiple thermistors/thermocouples! Thermostats indeed any temperature sensor is to do a “cluster test”. Basically you put them...

2 years ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Is my setback/preheat doing any good?

@lucia is it possible that your DHW is on for a constant time rather than to reach a set temperature?Otherwise it doesn’t make sense. On set-back as...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Could this be a ‘goer’?

This seems excellent to me since I get so annoyed with current building regs of two panels on a south facing roof which could take 10. Or two on the n...

2 years ago
Forum
Government Schemes, Regulations, Training, Planning & Organisations
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