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JamesPa
@jamespa
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Illustrious Member
Joined: Apr 3, 2023
Last seen: Jul 25, 2025
Profile Activity
Topics: 16 / Replies: 2637
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RE: Ecodan consuming 100kwh per day in new build!!!

Well at least that solves the mystery of where the excess energy is going, straight into the ground. It doesn't account for a poor COP though. Those...

3 weeks ago
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Air Source Heat Pumps (ASHPs)
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RE: Ecodan consuming 100kwh per day in new build!!!

PS to above. I just looked again at the photo you posted very early on. Are the feed and return from/to the heat pump really disappearing into the f...

3 weeks ago
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Air Source Heat Pumps (ASHPs)
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RE: Ecodan consuming 100kwh per day in new build!!!

From what you say about the radiators upstairs it does sound like you have problems with the pipework etc (which may be as simple as balancing or even...

3 weeks ago
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Air Source Heat Pumps (ASHPs)
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RE: Compressor attempts start but fails - Nibe Fighter 2005 8kW

@skyefarmer pleased you found it!

3 weeks ago
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Air Source Heat Pumps (ASHPs)
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RE: Compressor attempts start but fails - Nibe Fighter 2005 8kW

It might not be in the manual, mine was a rather innocuous third party 40mmx80mm brass fitting between the heat pump isolation valve and the heat pump...

3 weeks ago
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Air Source Heat Pumps (ASHPs)
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RE: Compressor attempts start but fails - Nibe Fighter 2005 8kW

I had a very similar problem with my valiant and it turned out to be a blocked filter. Unbeknown to me I have a very fine filter in addition to the m...

3 weeks ago
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Air Source Heat Pumps (ASHPs)
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RE: Ecodan consuming 100kwh per day in new build!!!

@anca1808 I have just reviewed the whole thread. In summary it seems you have several issues (undersized rads, inadequate insulation) which have b...

3 weeks ago
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Air Source Heat Pumps (ASHPs)
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RE: Heating coming on when not required

I played with a max heating temp but there is a world of difference between what you want it to do on a cool day in shoulder season and what you want ...

3 weeks ago
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Air Source Heat Pumps (ASHPs)
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RE: Pressure drop Primary circuit

I've always regarded topping up heating systems as my job not a plumbers. My gas system needed topping up about twice per year and no way was I going ...

3 weeks ago
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Air Source Heat Pumps (ASHPs)
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RE: Ecodan consuming 100kwh per day in new build!!!

Hmm Before doing that I would want to be certain that there are no attendant liabilities related eg to planning permission or grants that the develo...

3 weeks ago
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Air Source Heat Pumps (ASHPs)
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RE: Solar for heating DHW

If you are thinking of heating on the immersion consider a solar diverter which precisely matches load to available power. I had one until I got an a...

3 weeks ago
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Air Source Heat Pumps (ASHPs)
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