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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: Assessing Heatmiser Neostat Accuracy: How and Why to Calibrate Them

In the real World, the test equipment should be at least 3 times more accurate than the device being tested. So if the device being tested is specifie...

1 year ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Assessing Heatmiser Neostat Accuracy: How and Why to Calibrate Them

How do you know that the thermal camera or any other reference device is actually providing accurate readings? What is the manufacturer's specified ...

1 year ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Is this a bad installation? Is there something wrong with my heat pump?

The way that a heat pump defrosts is by reversing the direction that the refrigerant gas flows around the heat pump unit, so instead of absorbing ther...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Topic
Benefits of improved insulation.
1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Replies: 1
Views: 874
Reply
RE: Installing a heat pump in a Grade II listed property

I suppose that the ideal solution would be to have reputable companies that merely perform heat loss calculations for a reasonable cost that is then s...

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

@jamespa You are indeed correct, it may depend upon what the water pump(s) are doing. I know that some of the heat pump controllers continue to ru...

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

If my understanding is correct, volumisers and buffer tanks may be primarily required to help with the defrost cycle. Once this additional volume of w...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Daikin Altherma noisy heat pump - help and advice needed

It would appear to be a volumiser rather than a buffer tank.

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

The quantity of thermal energy that can be emitted from a radiator is primarily dependent upon the Average Water Temperature (AWT) within the radiator...

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

Which is why I have spent the past three years trying to convince forum members that they should have their poorly designed systems corrected to make ...

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

The only reason of which I can think, is that it would be to allow system designers to accommodate 'smart' thermostats and TRV's into their designs, w...

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

As far as I am aware there would be no problem with a LLH or buffer tank, if the primary and secondary flowrates can be balanced to ensure that no mix...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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