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JamesPa
JamesPa
@jamespa
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Illustrious Member
Joined: Apr 3, 2023
Last seen: Oct 12, 2026
Profile Activity
Topics: 28 / Replies: 5491
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RE: Repiping and Reconfiguring our Heat Pump System Including Removing the Buffer Tank - Heat Pump Retrofix

I congratulate you on your determinism and, lihe @Grahamf an sure that this plus some robust engineering will win through. I don't know much about y...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: How to Understand Wiring Up a Heat Pump

@renewables345 I completely agree with @transparent and @pirate-rich that there is absolutely no way you can 'learn' what decades of experience teac...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Why Air Release Valves and Deaerators are Non-Negotiable

FWIW, nearly a year after my heat pump install, I bled a radiator today and probably a third of it was filled with air. I do have an autovent fitted ...

1 year ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Glycol

If there are indeed antifreeze valves you dont need glycol. Look for these outside near the heat pump, only just protruding from the insulation. Som...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Help me keep the faith with my air source heat pump installation

@adamk Its a bit complex: My 28mm primaries run for about 1.2m outside then pass through a wall into the utility room where they run for about 2m in...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Why Air Release Valves and Deaerators are Non-Negotiable

I confess to the same misgivings! My installer fitted one so I have one, but would I fit one again, possibly not, or if I do as you say fit an isolat...

1 year ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Sizing - Save me from my headache

If you get an R290 pump you should be able to heat the tank to 65C which will give you 550l of water at 40C from a 300l tank. You probably don't want...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Sizing - Save me from my headache

Lets look at this the other way round. If your loss is 5kW and your heat pump can do 6.5 (absolute worst case with the Vaillant so far as can be told...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: How to Understand Wiring Up a Heat Pump

Firstly welcome to the forums, I hope you will find us friendly and helpful. And congratulations for being interested in renewables.   Hea...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Seal the Deal: Don't Let Your Heat Pump Leak Energy

Thats rather easy to understand, although it begs the question whether relocation is an option but Im sure @mars has already considered that!  ...

1 year ago
Forum
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