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Derek M
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Derek M
@derek-m
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Illustrious Member
Joined: Mar 4, 2021
Last seen: Sep 19, 2024
Profile Activity
Topics: 7 / Replies: 4405
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Reply
RE: Ecodan. How to run this efficiently with zero understanding.

Hi Derek...........Did you have any ideas on the DHW Pump running when not calling for heat? [/quote] Hi Dave, I was under the impression th...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: iBoost alternatives?

Before ditching the iboost, are you certain it has been correctly installed. I know from experience with my Immersun unit, if the current transforme...

3 years ago
Forum
Solar Photovoltaic (PV)
Reply
RE: Heat pump delta T too low - 2c

The above is not entirely correct, since an increase in LWT will actually cause the heat emitters to 'emit' more heat energy. Consider the following...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat pump delta T too low - 2c

The indicated value of flow rate may be 'rock solid', I doubt that the actual flow rate is.

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: iBoost alternatives?

The Immersun unit has up to three outputs, but is on the expensive side.

3 years ago
Forum
Solar Photovoltaic (PV)
Reply
RE: Low COP on Samsung 16kw Gen6

The buffer tank can cause problems with transferring the heat energy from the heat pump to the heat emitters and hence lower the overall efficiency. ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Low COP on Samsung 16kw Gen6

I can't see any photo's.

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat pump delta T too low - 2c

@mike-h Thinking about the problem, this may partially explain what could be happening within your system. If the required LWT is increased, the r...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat pump delta T too low - 2c

@mike-h Hi Mike, I must admit that I have not looked in detail at Samsung heat pumps, but I struggle to understand how it can control the quantity...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Low COP on Samsung 16kw Gen6

What is the type and size of your home? Do you have any heat loss calculations? Do you have any of the following within your system, buffer tank, ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan. How to run this efficiently with zero understanding.

It is the plate heat exchanger (PHE) which is item 12 in your schematic. I can only assume that your installer has used one because it would appear th...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan. How to run this efficiently with zero understanding.

@davew I have to go out soon, but I will send a reply later.

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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