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JamesPa
@jamespa
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Illustrious Member
Joined: Apr 3, 2023
Last seen: Nov 8, 2025
Profile Activity
Topics: 18 / Replies: 3309
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RE: Octopus Cosy Heat Pump Owners & Discussion Thread

The secret to this is (a) turn all or most of the TRVs to maximum and (b) balancing the radiators. Same as any open loop heating. Its a bit tediou...

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: DESNZ doing a survey which asks the right questions!

Fair comment. I have a feeling that ratings more generally have become subject to fears over liability. Its utter rubbish, but can you prove it? ...

2 weeks ago
Forum
Government Schemes, Regulations, Planning & Organisations
Reply
RE: PV Panels on roof in Conservation Area

If there is any way you can determine daily oil consumption (with date) through the season I suggest you do so. Ideally run your oil boiler for the s...

2 weeks ago
Forum
Solar Photovoltaic (PV)
Reply
RE: My experience with 3 heat pump surveys: Heat Geek, British Gas & Octopus

Good plan and pretty much what I did in the end (there were still 4 rad upgrades to be done by the installer when I got the heat pump installed, but I...

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Designing my house system with a mix of air to air and air to water

Sure. Mitsubishi ilife2 slim is the one Ive got. Panasonic do something similar. Myson ivector is another, Smiths Ecovector a low end one. Jaga Str...

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Designing my house system with a mix of air to air and air to water

I don't but I do have an a2W system with one fancoil and 2 radiators that have had fans added on a DiY basis. The rest is conventional rads. If I we...

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Mixergy Tank Failure

If you can turn on the destrat pump COP should improve because the water in contact with the coil will be colder. You will also heat more of the tank...

2 weeks ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: Grant 13kW Aerona3 - issues getting zones to temp

As you know balancing flow rates is very important. If flow from heat pump < flow to emitters you get significant system distortion (and thus loss...

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Buying a new EV charger

This is what I do, but I have a very simple economy 7 like tarrif (EON Next Drive) so the settings are trivial. EV-rated 13A wall socket, 'granny' ch...

2 weeks ago
Forum
Safety, Regulations, Tools, Plumbing & DIY Installations
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RE: Master & Slave Zones/Setback

Many, perhaps most, heat pumps run their water pumps occasionally (sometimes every 24 hrs or once per week) to prevent this.   With it b...

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: My experience with 3 heat pump surveys: Heat Geek, British Gas & Octopus

Firstly I agree with @grahamf above, very sensible comments IMHO. There is never any harm in radiators being too big, you can just drop the flow tem...

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: My experience with 3 heat pump surveys: Heat Geek, British Gas & Octopus

I had a fairly similar experience with installers just over 3 years ago. For various reasons, mostly to do with planning, the project was delayed for...

2 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Page 15 / 278
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