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Scalextrix
@scalextrix
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Joined: Sep 26, 2024
Last seen: Nov 30, 2025
Profile Activity
Topics: 6 / Replies: 112
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RE: Plate heat exchanger considerations

Thanks, this is what I was thinking about, so as long as heat energy can transfer back through the PHE into the primary circuit during defrost, then t...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Plate heat exchanger considerations

@jamespa I don't understand any point in an air test, if that fails, then the pipes are then broken, and the system cannot be refilled without digging...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: All your heat pump problems solved by -- a plate heat exchanger in a plinth!

@jamespa I hope I'm wrong but I suspect you will get an error code if it gets too low. Vented systems are so much simpler, it would be nice if heat ...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: All your heat pump problems solved by -- a plate heat exchanger in a plinth!

Yup, I see no reason to artificially pressurize low temperature heating technology, but as far as I can see that's the method most Heat Pumps follow. ...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: All your heat pump problems solved by -- a plate heat exchanger in a plinth!

@jamespa nothing to do with the needed pressure. Current pipework is likely 60 years old, buried in concrete and as such in an unknown condition. C...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: All your heat pump problems solved by -- a plate heat exchanger in a plinth!

It seems to be saying that by separating the systems, then glycol usage can be reduced. I've heard about maintenance issues with anti-freeze valves,...

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: How accurate was your heat loss survey?

Thanks, so yeah yours is quite oversized, we are the opposite, we need to keep the huse warmer than the standard.

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: How accurate was your heat loss survey?

@judith where it does start to make a differnce is installation cost and noise. Thanks for your reply.

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: How accurate was your heat loss survey?

@carpenterstation sounds like what I'm afraid of, hopefully you can get it sorted. Thanks for your feedback.

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: How accurate was your heat loss survey?

@bontwoody thanks, do you have any tips for a real world data approach. It does feel a little risky basing my estimate on a single day, unfortunatel...

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
Topic
How accurate was your heat loss survey?
7 months ago
Forum
Air Source Heat Pumps (ASHPs)
Replies: 11
Views: 828
Reply
RE: Plate heat exchanger considerations

Useful information thanks, we have a cupboard where all that can go, seems pretty small.

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
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