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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.

12 months 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 ...

12 months 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...

12 months 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...

12 months 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...

12 months 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'?

12 months 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...

12 months 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...

12 months 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'?

12 months 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.

12 months 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...

12 months 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. 😋

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
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