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JamesPa
@jamespa
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Illustrious Member
Joined: Apr 3, 2023
Last seen: Nov 8, 2025
Profile Activity
Topics: 18 / Replies: 3315
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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!  

3 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
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 ...

3 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
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...

3 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
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 ...

3 weeks 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 ...

3 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
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.  

3 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
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.

3 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
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...

3 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
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...

3 weeks 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
3 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Replies: 1
Views: 130
Reply
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...

3 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Midea ASHP – how to set weather compensation

It depends on what the actual heat loss is, what the changes are and how disruptive they are. If the actual heat loss turns out to be 10kW (ie at the...

3 weeks ago
Forum
Air Source Heat Pumps (ASHPs)
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