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JamesPa
@jamespa
Moderator
Illustrious Member
Joined: Apr 3, 2023
Last seen: Sep 21, 2025
Topics: 17 / Replies: 2882
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RE: My horrific Samsung heat pump installation and experience

@derek-m Understood! I've been thinking about the problem of assessing quantitatively the effect of on/off heating (eg when you switch it off ...

2 years ago
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RE: My horrific Samsung heat pump installation and experience

With an OAT of 5C which is what the graphs say you have, you would indeed expect that or better. Remember that cycling occurs when the heat pump cant...

2 years ago
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RE: ASHP decision: Should I or shouldn't I?

I find that with weather forecasts you need to be careful how you 'read' them. For example a '30% probability of rain' could be because you are edge ...

2 years ago
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RE: My horrific Samsung heat pump installation and experience

"Can you define "Short Cycling"? Is this short Cycling , acceptable , during April , during the prime Short cycling month of April?" Unfortuna...

2 years ago
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RE: My horrific Samsung heat pump installation and experience

@derek-m Thanks, that would be much appreciated!

2 years ago
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RE: My horrific Samsung heat pump installation and experience

There are various online calculators for flow and pressure. Temperature loss in pipes should be either negligible or within the insulated envelope o...

2 years ago
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RE: ASHP decision: Should I or shouldn't I?

Personally I both play with models (railways) and work with them. Experiment and theory complement each other. and modelling is not a modern obsessi...

2 years ago
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RE: My horrific Samsung heat pump installation and experience

Yes but this reduces the remaining voltage (pump head) available not the current (flow). And friction losses don't cause a temperature drop they cau...

2 years ago
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RE: My horrific Samsung heat pump installation and experience

Sorry but the analogy doesn't work. Pipes convey heat from one end to another according to your equation, they don't dissipate it according to this e...

2 years ago
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RE: My horrific Samsung heat pump installation and experience

In the analogy you are trying to draw, the voltage is the pump head (pressure) not the water temperature. The flow rate is the current and the impeda...

2 years ago
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RE: ASHP decision: Should I or shouldn't I?

If you haven't already you might want to re-read my earlier post which has a link to a worked example of spatial zoning and draws some analogies betw...

2 years ago
Reply
RE: My horrific Samsung heat pump installation and experience

Are you certain of 6.5C, Have you checked the actual temperature at the output of the Samsung?. If so, are the pipes insulated and are the flow rates...

2 years ago
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