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Fazel

@fazel

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Joined: Feb 25, 2023
Last seen: Nov 12, 2023

Topics: 0 / Replies: 124

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RE: ASPH Sizing Confusion

I would see it like this: Before anything else, don't constrain yourself with just one point 9kW, there is a range from 6kW to 11kW that is close to...

2 years ago

Forum

Air Source Heat Pumps (ASHPs)

RE: ASPH Sizing Confusion

As the flow temperature is degreased, the mean radiator temperature degreases, thus there is less heat transfer from the radiator to the air. As you c...

2 years ago

Forum

Air Source Heat Pumps (ASHPs)

RE: ASPH Sizing Confusion

@jamespa if you are chasing the efficiency of on versus off running temperatures at the lowest output, then you better not have the radiators sized fo...

2 years ago

Forum

Air Source Heat Pumps (ASHPs)

RE: ASPH Sizing Confusion

So that def means the WC should go lower flow temp at 15C outside, you can do that.

2 years ago

Forum

Air Source Heat Pumps (ASHPs)

RE: ASPH Sizing Confusion

no, sorry, random internet guy

2 years ago

Forum

Air Source Heat Pumps (ASHPs)

RE: ASPH Sizing Confusion

I hope you don't mind I've just used your newly installed system as an example whilst you were posting your own post. Initially I did question why y...

2 years ago

Forum

Air Source Heat Pumps (ASHPs)

RE: ASPH Sizing Confusion

My opinion is that oversizing is not a problem until you let the heat pump run in weather compensation/automatically when the load is bellow minimum. ...

2 years ago

Forum

Air Source Heat Pumps (ASHPs)

RE: ASPH Sizing Confusion

@jamespa I hope you will eventually get your own toy to play with in real time, so you can come to a conclusion based on facts rather than virtual dat...

2 years ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Heat pumps and on/off working - starting to quantify it

a flock of sheep stacked around the house? any related clothing? wool knitted underwear is bliss

2 years ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Ebac 5kW and 9kW monobloc ASHP units launching this week

“Our heat pumps are also fitted with hydrophilic coated coils as standard which enable a more efficient defrost cycle as they prevent a large build up...

2 years ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Heat pumps and on/off working - starting to quantify it

10% could be a real ballpark

2 years ago

Forum

Air Source Heat Pumps (ASHPs)

RE: Heat pumps and on/off working - starting to quantify it

2000 joules/m3 air/degree C

2 years ago

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