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Derek M
@derek-m
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Joined: Mar 4, 2021
Last seen: Sep 19, 2024
Profile Activity
Topics: 7 / Replies: 4403
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Reply
RE: Why are my flow and return temperatures reading the same?

As far as I am aware, there are two ways in which a heat pump can regulate the quantity of thermal energy it is supplying to the heat emitters, one is...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Why are my flow and return temperatures reading the same?

I would suggest that you have a read through the manual and see if the water pump speed or the desired Delta T can be adjusted.

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Why are my flow and return temperatures reading the same?

Where is the primary water pump located? Is it within the heat pump or eternal? You could try lowering the speed of the UFH water pump, if nothing e...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Effect of Buffer tank or Volumiser

Unless the flow rate of each water pump is matched, then there could be mixing occurring within the LLH. Probably the easiest way to optimise the sy...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Mitsubishi Ecodan pipe width query

If you look in the manual for your heat pump, it will probably specify the size and type of connections for the flow and return water pipes. I cannot ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: National Grid consultation on upgrading etc

Rather than the 'Great Grid Upgrade', what is being done about the 'Great Energy Efficency Upgrade', since if the energy is not required in the first ...

3 years ago
Forum
Electricity, Tariffs, Monitoring, Electrics & Providers
Reply
RE: Do setbacks save energy without compromising comfort?

@cathoderay I will possibly reply at some point in the future, once you have learned to communicate in a more civil manner.

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Do setbacks save energy without compromising comfort?

@kev-m Thanks Kev. I will run it through the modeling tool in the near future.

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Effect of Buffer tank or Volumiser

As far as I am aware, LLH's perform like a very thin buffer tank. How many water pumps are installed in your system?

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Why are my flow and return temperatures reading the same?

I would suggest that you check the speed of the water pump, it may be too high.

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Do setbacks save energy without compromising comfort?

@jamespa Thanks James. I posted it to you since you are familiar with the subject matter, and would provide an unbiased reply.

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Effect of Buffer tank or Volumiser

I don't know if anyone has actually performed any tests to see if having extra water volume within the system, could improve the defrost cycle. I supp...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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