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Brendon Uys
@heacol
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Noble Member
Joined: Aug 6, 2021
Last seen: Apr 3, 2025
Topics: 3 / Replies: 390
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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
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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
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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
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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
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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
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RE: Electricity use for heat pumps - comparing homes and consumption

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

1 year ago
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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
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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
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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
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RE: How Do Compressors and Frequency Affect Heat Pump Efficiency?

@william1066 It will be great to see the results.

1 year ago
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RE: How Do Compressors and Frequency Affect Heat Pump Efficiency?

@william1066 This is exactly what I would expect to see, your required flow temperature for under floor is very high, the switch on frequency is very ...

1 year ago
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