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Heatgeek
@heatgeek
Member
Trusted Member
290 kWhs
Joined: Dec 16, 2024
Last seen: Mar 5, 2025
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Topics: 0 / Replies: 39
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Reply
RE: My house is too big and the Vaillant 7kW heat pump can't heat it when temperatures drop below 4C

@jamespa There are some questions that are not being asked. What room temperatures are trying to be achieved at 4C (21C?) and what are the temperatur...

5 days ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Low COP and unevenly heated rooms with 12kW Samsung AE120MXTPEH / AE260TNWTEH

Just found out that flow limit for 12kW HP is 12 l/min. 9kW HP is 7 l/min. Shame. Less flexibility.

6 days ago
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Air Source Heat Pumps (ASHPs)
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RE: Low COP and unevenly heated rooms with 12kW Samsung AE120MXTPEH / AE260TNWTEH

One more thing. Do Samsung explain how defrost works on your Hydro unit? Does it use heat from the hot water tank which would make sense? If not, you ...

6 days ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Low COP and unevenly heated rooms with 12kW Samsung AE120MXTPEH / AE260TNWTEH

First, a disclaimer. I am not associated with the Heat Geek podcaster of the same name. I chose the name before I knew of the existence of the other. ...

6 days ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Low COP and unevenly heated rooms with 12kW Samsung AE120MXTPEH / AE260TNWTEH

I have a Samsung Split HP with Hydro unit also but a much older model (Gen 4) which works well. From your description you are not too dissimilar to my...

7 days ago
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Air Source Heat Pumps (ASHPs)
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RE: Heat pump's integral circulator pump

@heacol I agree entirely with you about balancing radiators on low dT. I made the mistake of putting 2 radiators together with my UFH, which is the ...

1 week ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Heat pump's integral circulator pump

@heacol Thanks, mate.

1 week ago
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Air Source Heat Pumps (ASHPs)
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RE: Heat pump's integral circulator pump

@robs Thanks for this. The statement about 8C was not mine. It came from a Brendon quote. The flow rate shown is the current one. Are you saying that...

1 week ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Heat pump's integral circulator pump

@heacol I am sorry that this provoked such a reaction. Misinformation applies to me as well so I did warn you. I never made any definitive statements...

1 week ago
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Air Source Heat Pumps (ASHPs)
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RE: Heat pump's integral circulator pump

@jamespa @heacol Beware disinformation on this forum. I took some time out to verify the statement made about all the top performing heat pumps on...

1 week ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Heat pump's integral circulator pump

@jamespa For the sake of clarity, in my previous response I ignored the house heat requirement at 15C OAT for a 10kW load at design temperature. The ...

1 week ago
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Air Source Heat Pumps (ASHPs)
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RE: Heat pump's integral circulator pump

@jamespa So, it seems that we have an empirical answer to your question rather than an engineering one. Therefore, from this input and context, I ded...

1 week ago
Forum
Air Source Heat Pumps (ASHPs)
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