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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: Advice on ASHP choice needed

I take it that you are looking at the red line and not the blue line.

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Two possible heat pump routes - how to evaluate them?

For optimum performance a heat pump should be operated at a low LWT that is consistent with reliable operation. The thermal energy output of a heat ...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Buffer tank in primary circuit?

If you operate the system as suggested you should not require a volumiser and definitely not a buffer tank. Let me try to explain how a heat pump sy...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Buffer tank in primary circuit?

If you wish for your system to operate in a more reliable and efficient manner I suggest that you try the following. Turn all the room thermostats t...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: My horrific Samsung heat pump installation and experience

I would suggest that you do not get too concerned about controlling the speed of your water pumps. The primary reason to vary the speed of a water p...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Aira Heat Pump: Stylish Scandinavian Heating

What's that saying "measure twice, cut once". I wonder if the 'surveyor' received a promotion to 'manager'?

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Two possible heat pump routes - how to evaluate them?

It is easy to compare the estimated output of different radiators using the calculator I provided. To estimate the thermal energy output of the type...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Two possible heat pump routes - how to evaluate them?

The standard output capacity of a radiator is specified at DT50, so if the IAT is 21C, the average water temperature would need to be 71C for the radi...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Domestic hot water timer doing crazy things on my Grant Aerona3 10kW air source heat pump

@mellow Is it possible to set this timer to be 'off until 10:00' and then 'on until 14:00'?

1 year ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: Two possible heat pump routes - how to evaluate them?

@heacol Thank you Brendon, though I would much prefer the information in table format which provides a great deal more detail.

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Two possible heat pump routes - how to evaluate them?

Unlike a number of heat pump manufacturers, Daikin appear reluctant to publish heat pump data tables, or at least I have not yet found any. The prim...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Two possible heat pump routes - how to evaluate them?

I'm from the old school, I much prefer hanging, drawing and quartering. 😋

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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