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SUNandAIR
SUNandAIR
@sunandair
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Noble Member
Joined: Dec 30, 2022
Last seen: Apr 13, 2025
Profile Activity
Topics: 5 / Replies: 474
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RE: Volumisers in Heat Pump Systems: Does Placement Matter?

Possibly 40c vs 30c flow has something to do with it…. Inevitably temp is what melts quicker. But what the graphs seem to show is both our Flow temps ...

4 weeks ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
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RE: Volumisers in Heat Pump Systems: Does Placement Matter?

Good call on the need for a beer.. that’s exactly what I did. As you say, your system appears to have plenty of emitter capacity for your HP size...

4 weeks ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Volumisers in Heat Pump Systems: Does Placement Matter?

@abernyte - you really can’t be too careful.... alas there is possibly another complication in the evidence..... @davidnolan22 has a Low Loss Header f...

4 weeks ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Volumisers in Heat Pump Systems: Does Placement Matter?

That’s a really good question. Ive been trying to find a clearer explanation of what specifically is the purpose or effect of increased volume in the ...

1 month ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Volumisers in Heat Pump Systems: Does Placement Matter?

@editor I have been persuaded by the argument that you have been stating that the correct placement for the volumiser should indeed be on the flow sid...

1 month ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Setback savings - fact or fiction?

@cathoderay I see you are continuing to misquote from the thread below. What you are repeatedly failing to see is that my thread is about making ...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Setback savings - fact or fiction?

@cathoderay Im just not sure what you are trying to find out beyond what already is showing as realistic savings. Also I do disagree with a statement ...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Setback savings - fact or fiction?

I thought we’ve been here…. It’s fact isn’t it?

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Auto adapt and the curve

I ought to make a correction - I said it shuts down when it passes the set temp. What I meant to say it modulates as it reaches the set temp. And as @...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Auto adapt and the curve

I think your current room temp chart confirms that you need to be much higher than 30c flow temp. It is reaching your target room temp. And as is ofte...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Auto adapt and the curve

@westkent it’s defrosting when the flow temp line (in blue) drops below the return temp line. (In black) The flow temp rapidly drops because the de...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Auto adapt and the curve

@westkent hi i can see now that at zero OAT these charts are showing defrosting. There seems to be a consistent deltaT. Does you house get up to the...

1 month ago
Forum
Air Source Heat Pumps (ASHPs)
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