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SUNandAIR
SUNandAIR
@sunandair
Member
Noble Member
Joined: Dec 30, 2022
Last seen: Dec 19, 2025
Profile Activity
Topics: 5 / Replies: 503
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RE: Creative trials on Night-time Setbacks to @ faster recovery, improved comfort and even greater energy reductions.

Picking up this thread from last year Following discussion on what is missing in the controls of heat pumps I've done a trial on a different kind o...

11 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: The Definitive Guide to Weather Compensation and Curves for Air Source Heat Pumps

@judith thanks…. Every day a school day. tomorrows lesson - filters and strainers- how many microns? 😂😂😂

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: The Definitive Guide to Weather Compensation and Curves for Air Source Heat Pumps

Ecodan 8.5 in old farmhouse. 180sq Mtrs. This cold spell has really given us all a chance to see how our heat pumps respond. We have had our first c...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: R290 install location and future of R32

@toodles thanks for that toodles. I was hoping you might have known something about this Daikin . It did appear to have a hydrobox fitted as soon as i...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: R290 install location and future of R32

There is one exception to the ‘gas outside the house presumption. Probably many others may exist in one form or another. I believe Daikin manufactur...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Controversial opinions - pure weather compensation, buffer tank, heat loss, oversized heat pumps

@raiph yes…. And with higher flow rates comes potential for background noise. But I must admit I don’t know much about pressure loss. 👍 Is t...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Controversial opinions - pure weather compensation, buffer tank, heat loss, oversized heat pumps

Hi @stuartornum “ When it's -3c and you have a 300L cylinder, it'll take at least 2.5 hours to heat the tank to ~55c. That's 2.5 hours your house...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: R290 install location and future of R32

@andrewj with the urgency of the need to reduce GWP internationally I would presume there would be a phasing out of new R32 installs. After all the en...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: How much radiator capacity do I need for an air source heat pump?

@jamespa also I do take your point about set room temperature being the cut off point but a room is not an homogeneous space there are temperature gra...

12 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: How much radiator capacity do I need for an air source heat pump?

@jamespa interesting stats and it wasn’t what I was expecting. So for many people reading this it might be considered nearly 30kwh (@DT50)of emitter...

12 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: How much radiator capacity do I need for an air source heat pump?

@jamespa Your reply is quite complex. I’ve also noticed on your HP roll call data that you are quoting 10kw of emitters. Is this based on the conv...

12 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: How much radiator capacity do I need for an air source heat pump?

Dear @jamespa (moderator) do you really think it appropriate to dismiss out of hand comments which don’t align with your opinions. The participants...

12 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
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