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JamesPa
@jamespa
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Illustrious Member
Joined: Apr 3, 2023
Last seen: Sep 12, 2025
Profile Activity
Topics: 17 / Replies: 2828
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RE: Avoid the Heat Pump Villain: Why Low-Loss Headers and Buffers Can Sabotage Your Heat Pump's Efficiency

PSPICE I think, it seems highly likely that a heat pump system, including the house, can be described in electronic terms. Cant see the average plumb...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Samsung R290 Monobloc built-in pump - is my buffer tank restricting system SCOP?

That looks like a tiny buffer plumbed with 4 ports and no temperature sensor to allow the heat pump to equalise flow rates, as well as quite a lot of ...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Moving to single zone

Thats not at all silly (actually its very sensible), so long as you disconnect the feed to ensure you dont risk burning out the motor. What do you ...

9 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
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RE: Moving to single zone

Sorry but there is no way I can tell from the photo what they are doing/controlling and there are several possibilities. Nor can I tell whether conne...

9 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Moving to single zone

Can you confirm the implication that you have two zone valves and a diverter valve (three in total) and are you sure both hive and neomits stats are c...

9 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Moving to single zone

Sorry Im getting mixed up whose house is getting too hot and which heat pump they have! Same principles apply however, the idea is to get the water ...

9 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Moving to single zone

Flow temperature. The heat pump decides this based on the outside temperature, the selected Weather Compensation curve, the target room temperature a...

9 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Moving to single zone

If the house gets too hot reduce the flow water temperature further until it doesn't! Thats the route to max efficiency/lowest cost and max comfort.

9 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Difficult positioning of air source heat pump

Landing windows dont count so calcs are based on the nearest window to a liveable space Covers are an option but if the calcs say that its OK noi...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Fitting heat pump plumbing and pipes in advance?

I think thats what I meant by the suggestion to fit an electric element to a towel rail?

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Difficult positioning of air source heat pump

@rikiarn I agree with @allyfish that this is a difficult one. I spent ages contemplating locations for mine, mentally going through all the options ...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Fitting heat pump plumbing and pipes in advance?

That is what I originally planned, then I fell back to 'ignore and rely on heat from adjacent room and steam when the bath is in use.@ The TRV will ...

9 months ago
Forum
Air Source Heat Pumps (ASHPs)
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