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JamesPa
@jamespa
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Illustrious Member
Joined: Apr 3, 2023
Last seen: Jul 20, 2025
Profile Activity
Topics: 16 / Replies: 2631
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RE: New to world of ASHPs: Ideal Logic Air Monobloc heat pump 8kW questions

Only to the extent that the heat has been produced at a lower COP than your space heating. But as you are probably talking 1-2kWh max per day, who ca...

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Controversial opinions - pure weather compensation, buffer tank, heat loss, oversized heat pumps

I hope and think so. this stuff is quite complex to describe!

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Fujitsu Waterstage WOYG160LJL Air Source Heat Pump

This is indeed ambiguous!. One would expect, since this is in a section called 'room influence' that it means ambient in, but it is unclear. the ba...

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Twin 10kw Grant Aerona Volumiser Tanks using lots of power

Honestly, my first call would be to disable them. As I say above the main point of the volumisers is simply to add water volume (ie its a tank). The...

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: New to world of ASHPs: Ideal Logic Air Monobloc heat pump 8kW questions

In fairness sometimes it's the only viable location. So long as gge pipes and tank are well insulated it may be the best that an be done. My cylin...

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Twin 10kw Grant Aerona Volumiser Tanks using lots of power

Sorry I misunderstood 55 to be the dhw temp not the flow temp for dhw. That being the case I wouldn't change it. It sounds like everything is basic...

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Twin 10kw Grant Aerona Volumiser Tanks using lots of power

Is there a setting allowing you to increase the differential between flow temperature and target dhw temperature. Then it would heat up quickly to a...

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Twin 10kw Grant Aerona Volumiser Tanks using lots of power

Thanks. I know a fair bit about heat pumps but not grant specifically, and I certainly dont know about their master slave setup. However i suspect t...

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Fujitsu Waterstage WOYG160LJL Air Source Heat Pump

You clearly have 'got' it. You dont really need me! The only thing Im not sure about is this "then reduce the temp set point on the ASHP down fro...

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Twin 10kw Grant Aerona Volumiser Tanks using lots of power

I apologies for my reaction. I was initially shocked that anyone would do this and then shocked that anyone makes it into a product. I still am TBH...

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Twin 10kw Grant Aerona Volumiser Tanks using lots of power

Am I correct in interpreting the photo as showing the volumisers outside and uninsulated. If so that's dreadful, to the point that this needs to be f...

5 months ago
Forum
Air Source Heat Pumps (ASHPs)
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