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SUNandAIR
SUNandAIR
@sunandair
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Noble Member
Joined: Dec 30, 2022
Last seen: Jul 23, 2025
Profile Activity
Topics: 5 / Replies: 496
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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...

7 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...

7 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...

7 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...

7 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...

8 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Analysing MELcloud heat pump graphs

hi @boycey I’ve read your latest reply. Not sure what you mean by “stats as above” I would suggest you find out if it’s ever been commissioned and if ...

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

just to throw the proverbial spanner in…. So this is only dealing with 40c flow temps during higher demand days. Whereas this doesn’t the solve the mo...

8 months ago
Forum
Thermostats, Volumisers, Buffer Tanks, TRVs, Pumps, Piping, Valves, Radiators & Controls
Reply
RE: Analysing MELcloud heat pump graphs

Above highlight does this mean you have certain areas not operating above 17c and only one area trying to get heating up to 21c? what % of the whole...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Analysing MELcloud heat pump graphs

@boycey thanks for the update. Have you found out if the flow rate is fluctuating at all, as per my earlier post? And what’s the answer on the last t...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Analysing MELcloud heat pump graphs

Hi @boycey I’ve edited post above incase you haven’t refreshed this thread…

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Analysing MELcloud heat pump graphs

@boycey yes ok understood… but have you got the ftc6 reading off the screen I’m just not clear if you’ve actually got the flow rate from the built in ...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Analysing MELcloud heat pump graphs

hi. Can you confirm if you’ve altered flow temps upwards or is this just the WCcurve on a colder morning? second basic question: have you had the in...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
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