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DavidAlgarve
@davidalgarve
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Reputable Member
Joined: Dec 1, 2023
Last seen: Aug 24, 2026
Profile Activity
Topics: 43 / Replies: 205
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Reply
RE: Secondary pump speed - how much slower should it be?

I have just received a quote for a variable speed secondary pump to replace the existing variable speed pump which had no PWM control supplied. Once f...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Secondary pump speed - how much slower should it be?

Really interested in this topic and I am having to change secondary pump to get variable speed. However, I can't see why we should be talking about re...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: How are Ecodan CoP quotes from MelCloud setups?

Thanks Kev M. We are having a warm winter in the Algarve, so I can't do much meaningful tweaking of the Ecodan Compensation curve. I have a buffer t...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: How are Ecodan CoP quotes from MelCloud setups?

Going back to my original question, if I used the figures from the FTC5 or MelCloud, how inaccurate would I be?

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Ecodan CoP

Thanks bontwoody. Because of Brexit, I guess that would cost me the best part of €1000 with shipping and duty and then there wood be the cost of fit...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Topic
How are Ecodan CoP quotes from MelCloud setups?
3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Replies: 14
Views: 6993
Reply
RE: ASHP & Buffer Tanks

PS If it is of interest, this is the Cordivari buffer tank - it appears to be the "100" model with capacity of 95l. I am not clear what is meant ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP & Buffer Tanks

I am very grateful to JamesPa for his very interesting explanation and for the subsequent comments by both James and Derek. I don't want to tackle t...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP & Buffer Tanks

Thank You to both Derek M and JamesPA. To clear up a couple of points made. 1-The primary pump is already set to max speed (5), so I have to look...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP & Buffer Tanks

Thanks Derek. We are having a rather mild spell (14C ambient) so I am not sure how meaningful this will be, but temperatures measured earlier today ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: ASHP & Buffer Tanks

Thanks for your response. I have done nothing on this recently, firstly due to Christmas visitors and secondly because I have not been able to find a ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Topic
Grundfos CH circulation pump
3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Replies: 0
Views: 2101
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