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DavidAlgarve
@davidalgarve
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Reputable Member
Joined: Dec 1, 2023
Last seen: Aug 18, 2025
Profile Activity
Topics: 21 / Replies: 102
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Reply
RE: Secondary pump speed - how much slower should it be?

Derek M is correct in that the Ecodan has a 5 speed pump and this is currently set at max of 5. I was just hoping for a meaningful measure of performa...

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

By "taking the buffer tank out of circulation" I mean removing the secondary pump and using the buffer tank just as a volumiser

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

Thanks JamesPa - have only just picked this up. I have the contractor visiting who is primarily a solar installer but he added the DHW system and I ...

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

Thanks Derek M for the further update. I have approached the contractor that installed the DHW system (including the 3 way valve) and he will make the...

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

@derek-m You would be most welcome and 3 bedrooms available. I would consider it good value!

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

I am most grateful to both Derek M and JamesPa for their advice, and I would just like to confirm how the tank is used as a volumiser, only in the ret...

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

Hello JamesPa. The contractor I employed, seemed to know what he was doing (and I was desperately trying to escape from LPG at a time when the price w...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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...

2 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...

2 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...

2 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?

2 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...

2 years ago
Forum
Air Source Heat Pumps (ASHPs)
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