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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: 4403
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RE: Do setbacks save energy without compromising comfort?

@cathoderay Thank you for providing a redacted copy of the raw data, I am always amazed at how trusting humans can be. Without giving away any sta...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Ecodan wont heat with mild outside temps

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

@cathoderay One further item I forgot to add to the list. Can you provide details of the probable concentration of anti-freeze within your system,...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Electricity price predictions

@chickenbig So what is the half-life of a coder? 😋 When can they be deemed safe to handle? 🙄 🙄

3 years ago
Forum
Electricity, Tariffs, Monitoring, Electrics & Providers
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RE: Electricity price predictions

I fully agree with your sentiments on this subject. I for one would be prepared to be more involved in guiding the decision makers for the benefit o...

3 years ago
Forum
Electricity, Tariffs, Monitoring, Electrics & Providers
Reply
RE: Do setbacks save energy without compromising comfort?

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Homely Controller now available for Daikin ASHP’s!

Sorry, don't know what oil they may be referencing.

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

If the IAT fell from your desired 19C, to 13.1C and remained at that value for the full 6 hour setback period, then increased back to 19C, then I ful...

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

@cathoderay Like you, I prefer to keep the maths as simple as possible, so to take the US example and apply it to your situation. If a temperature...

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

@marzipan71 The first thing that I would suggest is repeating the temperature measurements using an actual thermometer, since even if there is no ac...

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

@cathoderay A 8 degree F change in temperature is equivalent to a 4.44C temperature change, which for 8 hours would have the same affect as a 1.48C ...

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

@cathoderay A 1C reduction in IAT from 19.2C to 18.2C would provide a predicted 10.94% decrease in electrical energy consumption using the variables...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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