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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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Reply
RE: EcoDan Cold Radiators

On the cold radiators, have you checked that both valves, one at each end, are not fully closed. Has your heating system been correctly balanced? Ar...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Mitsubishi Ecodan & MEL Cloud

I'm afraid that I don't understand your query. If your heat pump is keeping your home warm at a lower LWT then that is a good thing, since it means ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Do setbacks save energy without compromising comfort?

@cathoderay I am not suggesting to run permanently on fixed LWT, but to try to get better control over the vicious circle that the heat pump is in. ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Do setbacks save energy without compromising comfort?

@cathoderay I am sorry to hear that your system is failing to keep your home warm, but I am not surprised, now that the design problems are becoming...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: EcoDan Cold Radiators

I'm afraid that I cannot see your system from where I am sitting, you will need to provide more details of what is operating and what is not. How many...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Do setbacks save energy without compromising comfort?

Here is one suggestion. A second small heat pump that can provide hot water into a coil type heat exchanger, which is mounted just before, but not t...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Do setbacks save energy without compromising comfort?

I think that a GSHP would have been a better option in your situation.

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: EcoDan Cold Radiators

I suspect that your system needs to be balanced, since it would appear that the majority of the water flow is going to the UFH.

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Rule change re ASHP

Thanks Toodles, you have put my mind to rest, I will be able to sleep like a baby tonight. 😋

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Do setbacks save energy without compromising comfort?

@cathoderay Yes, it is always good to be nice and friendly. I have had a closer look at the raw data that you supplied previously, since it contai...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Flow temperature up and down like a yo-yo

Increasing the water flowrate should reduce the DT (the temperature difference between LWT and RWT), but may not stop the cycling. Cycling is normally...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Flow temperature up and down like a yo-yo

What are the settings for the Weather Compensation (WC)? What is the water flowrate? What is the Leaving Water Temperature (LWT) and Return Water Temp...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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