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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: Do setbacks save energy without compromising comfort?

Your bills are lower, because the tariff may possibly be lower, but also because forum members helped your sort out all the issues and get your system...

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

This is the primary reason I have been developing the spreadsheet, so that it may be possible to predict what conditions favour a setback routine and ...

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

@cathoderay Thank you for some of the missing information. I was hoping that you would have the temperature information for the PHE to hand, but don...

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

I doubt whether anyone is going to post on the forum that setbacks are actually causing them to use more electrical energy, even if they knew that to ...

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

I doubt whether anyone is going to post on the forum that setbacks are actually causing them to use more electrical energy, even if they knew that to ...

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

Could you clarify how you assess that you are achieving what would appear to be a 50% reduction in electrical energy use?

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Radiator flow and return temps with my ASHP

The lockshield valves should be adjusted to balance room temperatures. As Hugh has suggested, don't worry about the DT provided that your home is warm...

2 years ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
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RE: Radiator flow and return temps with my ASHP

I have once again learned something new. A low DT across the radiators would indicate that you have a high water flowrate. The quantity of thermal e...

2 years ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Do setbacks save energy without compromising comfort?

@cathoderay There is one further question. The hourly average LWT derived from the minute data can be obtained in two alternative ways, one way is t...

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

@cathoderay Could you please provide details of the WC curve settings, and also confirm the your AA mode is still limited to +/- 3C around the calcu...

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

@cathoderay Can you please confirm that your secondary water pump does indeed continue to run when your heat pump goes into an 'off' cycle. I thin...

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

If you just show when the Amps are zero, that should indicate that the compressor is not operating. The specification for the hot water cylinder sho...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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