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cathodeRay
cathodeRay
@cathoderay
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Illustrious Member
Joined: Feb 28, 2022
Last seen: Sep 7, 2025
Profile Activity
Topics: 17 / Replies: 2117
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Reply
RE: Adventures in DIY Smart Thermostating

@scrchngwsl - very interesting, and thanks for writing it up in so much detail. A couple of thoughts: (a) at the end of the day, there is really onl...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Connecting Home Assistant to a Midea Heat Pump

Absolutely! One is complex and obscure, full of endless indents meaningless to man, the other is simple and transparent. That is the whole point!

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 12kW Samsung gen 6 short cycling

Pretty much par for the course, though my installer was better, he not only suggested the volumiser in the first place when I mentioned the short cycl...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 12kW Samsung gen 6 short cycling

I have the SDM120 without the M suffix. M is for modbus... I could get it changed over but it would need a qualified electrician (I don't think DIY ...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 12kW Samsung gen 6 short cycling

Yes, I agree, it is an interesting thread, and further confirms the smoke and mirrors we are up against. This is important information! Context m...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 12kW Samsung gen 6 short cycling

FWIW, I have calculated the weekly and overall discrepancies between my Class 1/Class B external heat pump only kWh meter (I think I am right in sayin...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 12kW Samsung gen 6 short cycling

An intriguing idea. But might it add additional complexity without any real benefit? Put another way, is there any harm associated with having a volum...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 12kW Samsung gen 6 short cycling

It might account for about a 10% difference (specific heat 4.2 vs 3.8), but it all depends on how Samsung (and Midea and all the others) do their calc...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 12kW Samsung gen 6 short cycling

But Samsung appear to claim (boast) COPs of 4 point something (with LWT at 35 degrees) and we must assume that is a downhill with a following wind COP...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 12kW Samsung gen 6 short cycling

@william1066 - are those COPs credible? I ask, because if they are not, then the underlying data is suspect. The 700W input isn't that remarkable, giv...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 12kW Samsung gen 6 short cycling

I wonder what peoples' views are on using a volumiser to reduce cycling. The idea as I understand it is that by increasing the circulating volume (whi...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Connecting Home Assistant to a Midea Heat Pump

More Home Assistant sh!te - why you really need Home Assistant like you need a hole in the head. After being nagged, I manually updated the HA core/OS...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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