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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: 4403
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Reply
RE: How to turn ASHP heating off!?

@tufty I suspect the main item that would likely be damaged would the the condenser, which is a Plate Heat Exchanger (PHE). Whilst I don't think tha...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Are you planning to use a wood burner to supplement your central heating this winter?

No. But not having a wood burner may have something to do with the decision. For some reason 'she who must be obeyed' frowns upon me trying to build a...

2 years ago
Forum
Wood Burners, Biomass, Small Scale, Biofuels & Other Heating Alternatives
Reply
RE: How to turn ASHP heating off!?

I have no idea how long it will take or the likely cost. I have an A2A heat pump which doesn't require anti-freeze.

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

@bontwoody There are quite a number of aspects to consider when it comes to the sizing of a heat pump. As James has correctly pointed out, the sta...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: How to turn ASHP heating off!?

@tufty I suppose that this is one of the grey areas, where one would hope that the engineer would at least explain the meaning of the -4, before he ...

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

Where did you get the data for the Ecodan? According to the manufacturers data at an OAT of -7C, the 11.2kW Ecodan has a capacity of 10.6kW at a LWT o...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat pumps and on/off working - starting to quantify it

@jamespa Hi James, I have now completed some further improvements to the modelling tool. It is now possible to adjust the desired IAT setpoint a...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan ASHP cycling every couple of hours

@crustydoodle The installer is responsible to provide you with a proven functioning system, failure to do so would be a breach of contract. I would ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan ASHP cycling every couple of hours

From the noise point of view I seem to think that the water pump is being supported by the pipework. The pump should be mounted on a suitable bracket ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Samsung ASHP scheduling help

@redzer_irl You could try running the heat pump in fixed LWT mode starting with a low LWT setting and gradually increasing the setting until the des...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan ASHP cycling every couple of hours

@crustydoodle Just to clarify if my understanding is correct. You started the heating system by raising the setting on one or more thermostats. Th...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan ASHP cycling every couple of hours

Yes, the sensors are the thermistors. When I refer to 'good thermal contact', I mean is the thermister either fitted in a suitable pocket or clamped...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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