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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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RE: ASPH Sizing Confusion

@jamespa I partially agree with your assessment, but I would say that the determining factor of how much thermal energy is transferred is the averag...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASPH Sizing Confusion

Have you noticed any differences since the alterations were completed?

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASPH Sizing Confusion

@sunandair Thank you for carrying out the detailed testing and producing the excellent results. Whilst it is possible to predict likely outcomes in ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Vaillant Arotherm Plus Help needed

It is actually called a 'back-up heater' and is in addition to the immersion heater, which would be located in the hot water cylinder. The purpose of ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Vaillant Arotherm Plus Help needed

All that I can suggest is that you trace back along the cable to the place from which the heater is supplied. Is this heater the DHW cylinder immers...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Vaillant Arotherm Plus Help needed

Heat pumps are not designed to provide central heating and DHW heating at the same time. DHW heating requires a much higher leaving water temperatur...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Accessing and analysing data from your heat pump

@leichat CathodeRay managed to locate and extract some data from the Mideo controller and data stream.

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Vaillant Arotherm Plus Help needed

Did you resolve your problem? Feedback is required to prevent wasted effort.

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Vaillant Arotherm Plus Help needed

I would suggest that you read through the attached guide and see if it throws any light onto your problems.

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASPH Sizing Confusion

@squiff The size of any required expansion vessel is dependent upon the total volume of the system (radiators, UFH and pipework etc), the greater th...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Which is more efficient Solar Diverter to Immersion/Hot water cylinder or Combi Direct Hot water on demand?

There are a number of options, which may depend on what you are trying to achieve. I am not 100% certain, but would it be possible to keep your pres...

2 years ago
Forum
Solar Thermal & Power Diverters
Reply
RE: ASPH Sizing Confusion

Quite. It is necessary to ask a prospective installer to provide a copy of the capacity data tables for their proposed heat pump and see how that comp...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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