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HCas
@hcas
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Joined: Apr 8, 2024
Last seen: Sep 23, 2025
Profile Activity
Topics: 2 / Replies: 109
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Reply
RE: Controller experiment - looking for volunteer

@editor Morning Mars! Indeed, somewhat similar to Homely. With regards to connecting to the heat pump, the goal is to make it very simple. This me...

2 years ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Topic
Controller experiment - looking for volunteer(s)
2 years ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Replies: 4
Views: 1444
Reply
RE: Creative trials on Night-time Setbacks to @ faster recovery, improved comfort and even greater energy reductions.

@sunandair Yes good point on the temperature during the night and impact on the heat pump efficiency! I've seen similar effects in some simulations I'...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Heat pump Comparison

Very interesting question! Unfortunately, there is no clear answer that is true for all situations. It depends on thermal mass, insulation, comfort ne...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Creative trials on Night-time Setbacks to @ faster recovery, improved comfort and even greater energy reductions.

Thanks SUNandAIR! 3 kWh on 10 or 15 kWh is substantial, and more than I expected to be honest. So I guess for you the setbacks are now the default? ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Numerous issues – 11kW Daikin Altherma 3

@crasher If you're happy with the controls provided through MMI and associated running cost, and you don't want remote control or additional "smartnes...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Numerous issues – 11kW Daikin Altherma 3

@crasher Thanks for this detailed explanation! Are you using the Onecta app or controlling everything through the MMI and the thermostats?

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Daikin COP / energy used measurement from MMI

@squarepeg77 Hi! Is it your ESPAltherma that is connected to Home Assistant? Or are you using the Onecta API for the Home Assistant? And the ESPAlther...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Numerous issues – 11kW Daikin Altherma 3

@julianc Hi JulianC, I'll DM you and we can perhaps set up a brief call like you suggested!

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Daikin COP / energy used measurement from MMI

Were you able to solve the lack of electricity usage data? Did anyone try to access the Onecta API directly? So not through the app or via the MMI, ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Numerous issues – 11kW Daikin Altherma 3

@crasher How did you set up your Altherma 3 to run more efficient? Are you happy now with the way it has been running?

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Creative trials on Night-time Setbacks to @ faster recovery, improved comfort and even greater energy reductions.

@sunandair Hi there, really interesting experiment! So if I understand correctly, your conclusion is that nightly setbacks actually save energy (and t...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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