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JamesPa
JamesPa
@jamespa
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Joined: Apr 3, 2023
Last seen: Oct 12, 2026
Profile Activity
Topics: 28 / Replies: 5489
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RE: Grant 13kW Aerona3 - issues getting zones to temp

Volumiser totally different to buffer or llh. Volumiser 2 ports, buffer/llh 4, volumiser doesn't cause system distortion, doesn't penalise COP, buffe...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Grant 13kW Aerona3 - issues getting zones to temp

R290 has an explicit installer setting for 'no buffer'. It couldn't be clearer!  

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Grant 13kW Aerona3 - issues getting zones to temp

They arent one offs, but they will empty the system in part if they go off. Better than making it work less well by filling with Glycol. Some argue ...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Odd noise in our Ideal Logic ASHP

These are well respected pumps so far as I know. Only one radiator on sounds very wrong, this should never be allowed to happen and is almost bound...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Grant 13kW Aerona3 - issues getting zones to temp

He is right. Better to eliminate it altogether. Is the Grant the R290 or the R32? The instructions for the R290 (which as it happens I was reading ...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Grant 13kW Aerona3 - issues getting zones to temp

Sorry but the more I think about this the more its shouting RED FLAG. The work is, you say going to be done in a day. He is probably going to fit a ...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Should Our Water Circulation Pump Be Configured to Run All The Time?

Noted The Vaillant doesn't either, other than with a board swap. A bit mad TBH.  

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Should Our Water Circulation Pump Be Configured to Run All The Time?

Maybe it will happen as a result of a firmware upgrade, if they push them out which they may or may not do/may or may not be able to do.

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Grant 13kW Aerona3 - issues getting zones to temp

Im sceptical, whats the mechanism? I get the impression that it may be entirely that. Not a good sign. The problem for you is that he will ev...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Grant 13kW Aerona3 - issues getting zones to temp

This is broadly what I remember from earlier and what worries me, as it is strongly indicative of a water flow problem rather (ie not enough heat bein...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
Topic
What suggestions to give to someone with a buffer tank - how best to set an unnecessary buffer tank up
12 months ago
Forum
Air Source Heat Pumps (ASHPs)
Replies: 4
Views: 1368
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RE: Grant 13kW Aerona3 - issues getting zones to temp

I confess I haven't followed the full ins and outs of this case but, as I understand it, your principal problem is that some rooms that are not gettin...

12 months ago
Forum
Air Source Heat Pumps (ASHPs)
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