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cathodeRay
cathodeRay
@cathoderay
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Joined: Feb 28, 2022
Last seen: Jul 15, 2025
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Topics: 17 / Replies: 2064
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Reply
RE: In the Bleak Midwinter...

Defrost cycles are ones in which the LWT falls below the RWT, ie the circulating fluid loses heat as it passes through the heat pump. Thus all the cyc...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: In the Bleak Midwinter...

Wind chill in action. The OAT has warmed up a lot over the last 24 hours but my heat pump is still failing to get my house back up to temperature. The...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Massive Electricity Cost for Running My Air Source Heat Pump

@econonsense - tomorrow is fine. Is there not some sort indoor controller panel? That is where you would normally get and set the settings? Very few o...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Massive Electricity Cost for Running My Air Source Heat Pump

@econonsense - if that is the timing, then it has long enough to heat the water - but to what temperature? You need to find out what the set (target) ...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Don’t ‘TRV’ (Trust a Radiator Valve!)

I really should proof read comments before posting...

8 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Massive Electricity Cost for Running My Air Source Heat Pump

You need to check what it is actually set to. I am not familiar with your brand of heat pump, but it should nonetheless give you some form of monitori...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Massive Electricity Cost for Running My Air Source Heat Pump

Indeed. They do have a chatbot box on their website, maybe that works 24/7.

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Massive Electricity Cost for Running My Air Source Heat Pump

If they are this company, then their website says they are MCS accredited (certified), and it also answers @editor's question, they are HIES registere...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Massive Electricity Cost for Running My Air Source Heat Pump

We need to look at this more closely, all the more so given your heat pump was installed this April. If it means exactly what it says, it won't be rep...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Massive Electricity Cost for Running My Air Source Heat Pump

I take it that is the desired indoor air temperature. If so, it raises a question mark as MCS (the official (though some say clownish) body that overs...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Don’t ‘TRV’ (Trust a Radiator Valve!)

@toodles - my TRVs do the same thing, when fully open and fully screwed into place, they partly close the valve. Shocking design. If I screw the valve...

8 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Massive Electricity Cost for Running My Air Source Heat Pump

@econonsense - the heat loss is an essential part of the design process, it is used to determine the size of heat pump. I should mention in passing th...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
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