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JamesPa
@jamespa
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Illustrious Member
Joined: Apr 3, 2023
Last seen: Oct 16, 2025
Profile Activity
Topics: 18 / Replies: 3088
AllTopicsReplies
Reply
RE: Long term efficiency degradation

It's a good question to which I have never seen any answers. The princial mechanisms I can think of are wear and tear on the compressor and bunging u...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Sunamp Thermino Heat Battery

Interesting, I must reread the BUS rules for this combo.... ....Ok the relevant rules are below. I can't see how a heat pump with electric only ...

2 months ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: Sunamp Thermino Heat Battery

Depends on your electricity tariff and in particular your export tariff, also on time of year. So for example my import tariff is 7p midnight-7am, 2...

2 months ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: Planning Permission May 2025

Fair enough. I have read the legislation and MCS020a several times so am pretty sure of my interpretation.

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Planning Permission May 2025

Where does it state this please? Im genuinely interested to know as I cant find it, and would like to correct my information if its wrong. Depen...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Octopus Cosy & Octopus EV + bidirectional smart tariff, together. What, eh?

Agree. To me it misses the obvious fit namely 'second' cars, more likely to be secondhand. Still it's a start!

2 months ago
Forum
Electricity, Tariffs, Monitoring & Providers
Reply
RE: Planning Permission May 2025

In England that is no longer the case although you have to read source documents carefully to figure this out. I cant comment on Scotland, Wales and ...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP heat output monitoring

As you say its poor either way. I have tried to find out how they calculate it from the manual (which is pretty poor) but cannot. I will keep trying...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP heat output monitoring

Same with Vaillant btw

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 300 Liter Tank - Do I have to heat it all?

That sounds like change of use from domestic to mixed domestic/industrial (or possibly sui generis) so would probably need planning consent.

2 months ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: Share Your Experiences with Heat Pump Manufacturer Support

Noted. There are plenty of 8kW Dawkins on openhearpump monitor that deliver around 8kW which is why i'm asking questions around the problem. Howeve...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Share Your Experiences with Heat Pump Manufacturer Support

Ok I'm not going to get into a chicken and egg discussion because it won't progress things. Irrespective of which comes first DT flow to return is ...

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
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