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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: Low Loss Header is losing 1.5c from flow temperature

@sunandair The water mixing would appear to be in the better direction, water flow into LLH slightly greater than water flow out. You could try lo...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Worcestershire ASHP

The size of heat pump should be based upon the heat loss of your home, not which model is the quietest. What is the heat loss?

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Finding water leaks

@editor You could probably check the accuracy of your meter by taking a reading, and then filling a vessel of know volume, the larger the better, in...

3 years ago
Forum
DIY
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RE: Adding battery storage to solar with ASHP

@transparent I fully agree. Whilst it is important that people can use such systems to help reduce their electricity bill, and hence recoup the or...

3 years ago
Forum
Energy Storage
Reply
RE: Low Loss Header is losing 1.5c from flow temperature

@sunandair In a similar manner to the CH, DHW production also suffers from the effects of those 'nasty' Laws of Thermodynamics, who insist upon movi...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Does the ASHP system work ok if stopcock for taps etc is switched off.

The first thing that you need to do is try to locate the leak. If it is at a tap or inside your washing machine or dishwasher then just shut off the w...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Adding battery storage to solar with ASHP

Do you have the detailed, room by room, heat loss calculations, on which the size of your heat pump should have been based? What kind of heating do ...

3 years ago
Forum
Energy Storage
Reply
RE: Adding battery storage to solar with ASHP

What is your heat loss calculation and what size of heat pump is being installed? What is your DHW consumption? From the above it may be possible to...

3 years ago
Forum
Energy Storage
Reply
RE: Low Loss Header is losing 1.5c from flow temperature

@sunandair The 1.5C - 2C temperature difference between primary and secondary, could just be due to inaccuracies in the readings. Lowering the flo...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Twin ASHP Operation - Question

Without knowing the exact details of your system, how it has been installed and configured, it is difficult to provide a definitive answer. Possibly ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: replace large outdoor unit with smaller one

Do you have any heat loss calculations for your home?

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Low Loss Header is losing 1.5c from flow temperature

@sunandair Where is the DT of 5C, when you close in the valve and where is the valve located? Some actual temperature values on the diagram would ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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