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@heacol
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Noble Member
Joined: Aug 6, 2021
Last seen: Jul 27, 2025
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Topics: 3 / Replies: 404
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Reply
RE: Grant 13kW Aerona3 - issues getting zones to temp

@crimson I know they would say that, all Grant is interested in is stopping their unit from suffering low flow errors, they do not care about you and ...

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

@crimson Possibly, but I still think it is a water flow issue looking at the pictures. You will find a huge difference removing the low loss header an...

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

@crimson You are fighting a loosing battle, the low loss headers and the high temperature zone valves are tying both arms and 1 leg behind your back. ...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: How do I choose a single room MVHR to prevent losing heat in my bathroom ?

Yes it does, a direct swap, same 4" hole. The mini is fine.

1 year ago
Forum
Insulation
Reply
RE: How do I choose a single room MVHR to prevent losing heat in my bathroom ?

I helped develop these, they are brilliant, I have 1 in my house and no damp or condensation.

1 year ago
Forum
Insulation
Reply
RE: Are antifreeze valves essential for a glycol free ASHP system?

@abernyte It very much depends on how your system is designed and operated. The poorer the system and SCOP the less effect glycol has on the overall p...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Are antifreeze valves essential for a glycol free ASHP system?

This is correct but you have not calculated the pumping requirements correctly. You have forgotten the increase in viscosity of the glycol mixture. At...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Electricity use for heat pumps - comparing homes and consumption

SCOP 5.3, not even close to the UK record. 😀

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Electricity use for heat pumps - comparing homes and consumption

🤣 🤣 Lets see if we can double that SCOP, I do not think we will be that far off from what I understand of the system 😊

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Are antifreeze valves essential for a glycol free ASHP system?

@editor I am not saying the units will not freeze in some conditions, and I have seen many, however it is the design of the unit it'self that will det...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Are antifreeze valves essential for a glycol free ASHP system?

According to Samsung, you either have to have antifreeze valves or glycol. As glycol will add 20%+ to your heating bill, it is not really an option. I...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Creative trials on Night-time Setbacks to @ faster recovery, improved comfort and even greater energy reductions.

@cathoderay How is your system controlled?

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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