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JamesPa
@jamespa
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Illustrious Member
Joined: Apr 3, 2023
Last seen: Aug 1, 2025
Profile Activity
Topics: 17 / Replies: 2668
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Reply
RE: Air Changes per Hour - ACH and the MCS requirement

It's a good question. With a house that has sufficient heat capacity (eg one with ufh in a slab) batch heating at cheap rate is probably a good app...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Flow Rate & Low Loss Headers

It sounds like you have thought about this a lot and everything you are saying looks sensible. A windowless, doorless gable with no properties nearby...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Remaining hot water/hot water flow meter

I think you first sentence is spot on, stored DHW is just different to on tap DHW from (presumably) a combi. Not worse, not better, just different. ...

2 months ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: I don't need any heating in the summer. How do I turn my Samsung heat pump off?

I should perhaps clarify my thoughts in view of the comments from @old_scientist (with whom I agree). @quakerquaker asked 'Q1 - is maintaining the w...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Remaining hot water/hot water flow meter

Rainfall showers can be 20l/min and stored water at mains pressure/3bar generally flows faster (possibly a lot faster) than anything coming out of a c...

2 months ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: Flow Rate & Low Loss Headers

tricky that, I cant say I have a solution. Fair enough. Its all a bit crazy IMHO. You can have a 13kg bottle of propane in a garage or on...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Air Changes per Hour - ACH and the MCS requirement

@ashp-bobba Talking of over-sizing (and if you dont mind me asking) what do you suggest for a load such as 3-4kW. There is another thread where this...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Flow Rate & Low Loss Headers

I definitely wouldn't want that near my bedroom (which is where my DHW tank is) but as you say in a kitchen area is OK Lots of installers certain...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: I don't need any heating in the summer. How do I turn my Samsung heat pump off?

Q1 - Yes, thats why the tank is well insulated, the amount of energy lost is pretty small. That said, as you know when you use most DHW, why not do s...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Remaining hot water/hot water flow meter

You could do a sensor near the top (it would need to be inside the insulation so can you get at it and how would you use it to signal you) but there i...

2 months ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: Thinking of ripping our my IVT Greenline HT Plus C model and replacing with a gas boiler.

That's great and in principle I wouldn't disagree, but if someone is being quoted 18K to fix a heating system then I can fully understand their reluct...

2 months ago
Forum
Grounds Source Heat Pump (GSHPs)
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