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bontwoody
bontwoody
@bontwoody
Contributor
Noble Member
Joined: Mar 5, 2022
Last seen: Aug 16, 2026
Profile Activity
Topics: 39 / Replies: 1016
AllTopicsReplies
Reply
RE: Poor COP with an Ecodan

@adam_colwell I have a 5kW Samsung, but used to have the same Mitsubishi ASHP as you and I was doing quite a bit better in terms of COP. 9kW for hea...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Poor COP with an Ecodan

@adam_colwell Hi Adam. The COP numbers do sound very low given the flow temperatures you are talking about and the insulation values of your house. Do...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Help needed with Grant Aerona ASHP

@bobby_bunny It might be in the Installer Menu or the Service Menu to access the latter 'Service level is a bit of a faff to access, first you go in...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Help needed with Grant Aerona ASHP

I think that there is a 1 hour maximum water heating setting. In the installer menu or the menu above that. You can alter it once you access the corre...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Help to check if my Ecodan set up correctly and running efficiently ?

@disabledman From your image, your water tank size looks fine for a single bed house. I cant tell whether or not it is heated by the heat pump, but yo...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Effect of Buffer tank or Volumiser

@iancalderbank @derek-m I found this by Graham Hendra which is interesting around the siting of a volumiser.

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Effect of Buffer tank or Volumiser

@derek-m Thanks Derek. Apart from the cost issue, would you say it was better not to have a internal volumiser if there were sufficient volume of circ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Topic
Effect of buffer tank or volumiser on heat pump system
3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Replies: 15
Views: 15383
Reply
RE: Help to check if my Ecodan set up correctly and running efficiently ?

So doing a quick calculation of your COP gives Nov=2.3, Oct=1.9 and Sep=2.2. These figures are very low so we need to find out where all this electric...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Help to check if my Ecodan set up correctly and running efficiently ?

Hi. The room heating setup seems perfectly sensible at first glance but your COP ( % efficiency) looks very low. You calculate this by dividing the he...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: New installation not quite right, advice sought

@guthrie Moving the Samsung controller is quite easy, just two wires. This would be suitable to extend it.

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Good ASHP installation near(ish) Bridgend, Wales

@iancalderbank You wish! 😆 I will have another look at Openenergymonitor 🙂

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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