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iancalderbank
@iancalderbank
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Joined: Oct 17, 2022
Last seen: Jan 14, 2025
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Topics: 0 / Replies: 643
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RE: Avoid the Heat Pump Villain: Why Low-Loss Headers and Buffers Can Sabotage Your Heat Pump's Efficiency

It does. I do not claim to be the world authority on PHE's but if you read the public explanations of how they work, full efficiency running a HP acro...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Avoid the Heat Pump Villain: Why Low-Loss Headers and Buffers Can Sabotage Your Heat Pump's Efficiency

no of course end users shouldn't be doing this. Installers should. Installers should be MADE to put in systems that perform properly and held liable (...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Hot water issue, never seen this before: Grant Heat Pump and Cylinder

ok no worries . in which case I concur with yourself and hughf, blending valve is the first place I'd check. you should be able to feel the temperatur...

1 year ago
Forum
Domestic Hot Water & Cylinders
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RE: Avoid the Heat Pump Villain: Why Low-Loss Headers and Buffers Can Sabotage Your Heat Pump's Efficiency

I think the difference between testbed and realworld here vs others is that in say cars, you could never get the MPG advertised (although now there ar...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: 12kW Samsung ASHP set up help needed

@swanny also. the pipe insulation in the loft is crap. look at the gaps. Because its in your loft it really matters. it will be at outside temperature...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: 12kW Samsung ASHP set up help needed

@swanny ok if the 3rd pump is to boost your the water pressure to the shower then its nothing to do with the central heating, we can forget about it f...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: 12kW Samsung ASHP set up help needed

as per mike-h, if you want to be able to temporarily and quickly "boost" your temperature the only easy way (without delving into modbus control) is t...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: 12kW Samsung ASHP set up help needed

@swanny the different WL interlinks values are different timing options for the overruns. 3 was what was recommended to me in lots of material I read ...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Rate the quality of your heat pump design and installation

@editor I voted perfect 🙂

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Hot water issue, never seen this before: Grant Heat Pump and Cylinder

Are you sure you've describe it the right way round? Your description says the cold tap runs hot then lukewarm? Did you mean the hot tap? If so then e...

1 year ago
Forum
Domestic Hot Water & Cylinders
Reply
RE: Secondary pump speed - how much slower should it be?

@jamespa I think the question was from the point of view of "toodles has an LLH, no prospect to do anything different , what should the pump tuning b...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 12kW Samsung ASHP set up help needed

@swanny good progress. 1kw is a good start. the fact its showing 25% on that "inverter pump" number, means it would be trying to slow the pump down if...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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