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Travellingwave
@travellingwave
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Trusted Member
Joined: Jan 4, 2023
Last seen: Apr 1, 2026
Profile Activity
Topics: 2 / Replies: 51
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Reply
RE: Heat Pump Books For Beginners – The Ultimate Guide to Heat Pumps, Bodge Buster & From Zero To Heat Pump Hero

@editor Hi Mars Just reading the ultimate heatpump guide - which looks to be a good general introduction for home owners to heatpumps. I apolog...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Struggling to get CoP above 3 with 6 kw Ecodan ASHP

And a picture of cylinder and surrounding pipe work would help.  

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Struggling to get CoP above 3 with 6 kw Ecodan ASHP

Could do to know what control mode you are using - weather comp or Auto adapt - from your trend looks like you are using weather comp but I’m not too ...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Struggling to get CoP above 3 with 6 kw Ecodan ASHP

I looked at the trend in the link for booster - I see the booster on flag set but don’t see any corresponding rise in flow temp gets- makes me think y...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Struggling to get CoP above 3 with 6 kw Ecodan ASHP

Some of this stuff is getting quite technical so let me know if not clear. From memory disabling booster requires changing DIP switch settings insid...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Struggling to get CoP above 3 with 6 kw Ecodan ASHP

Ref stopping and needing booster to get back up to temp - that sounds like something not set up right. Personally I would disable any booster heater a...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Struggling to get CoP above 3 with 6 kw Ecodan ASHP

By the way don’t leave it in fixed temp mode - very inefficient - just use it for balancing.

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Struggling to get CoP above 3 with 6 kw Ecodan ASHP

Ref radiator removal- have you checked system pressure - should be about 1.5 bar, might need topping up if you’ve had a rad off.

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Struggling to get CoP above 3 with 6 kw Ecodan ASHP

Did you get any handover pack from your installer? This should state if glycol antifreeze has been added and what concentration.

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Struggling to get CoP above 3 with 6 kw Ecodan ASHP

Also important that UFH is balanced correctly for same reason.

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Struggling to get CoP above 3 with 6 kw Ecodan ASHP

@goodbyegas Well you are warm and your flow temp at 3 Deg outside temp is only 35 degrees so you should be getting pretty decent COP. Hopefully it ...

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Our Experience installing a heat pump into a Grade 2 Listed stone house

@robs I didn’t have the OAT for the full range of data so that’s probably why.

2 months ago
Forum
Air Source Heat Pumps (ASHPs)
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