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Johnmo
@johnmo
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Joined: Jan 25, 2023
Last seen: Mar 11, 2025
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Topics: 2 / Replies: 422
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RE: Octopus Cosy 6 installation (fan boy video)

Do your maths with Sunamp and ASHP. They used to do a low temperature one for heat pumps, but now they do not. So your heat pump has to be able to run...

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Octopus Cosy 6 installation (fan boy video)

Think you found a sympathetic installer. As the grant rules state (2) A heat pump meets the suitability criteria in relation to the eligible propert...

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Octopus Cosy 6 installation (fan boy video)

To get the grant you are supposed by the rules to heat your home and DHW via the heat pump. MCS then states the minimum sized based on number of bedro...

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Advice please on controls for my Daikin 14kw 3H HT heat pump with 3H HT W internal unit and Megaflo cylinder

Low and slow is best, running like a gas boiler you will need a second mortgage. So weather compensation is best

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Advice please on controls for my Daikin 14kw 3H HT heat pump with 3H HT W internal unit and Megaflo cylinder

That's a low flow condition. Do you have lots of zones (thermostats) if so what's happening is the zones are closing off, and the circulation pump can...

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: ECODAN ASHP General Set-up and efficiency.

-39 would possibly indicate it's expecting to see a temp and something is either loose or not connected. Maybe the installer has just circumvented all...

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Advice please on controls for my Daikin 14kw 3H HT heat pump with 3H HT W internal unit and Megaflo cylinder

What do you mean by cut out. Are you saying the fan stopped (if so that is normal) or just stopped working and the tripped the main breaker? Or someth...

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: ECODAN ASHP General Set-up and efficiency.

Your curve is obviously way to hot. You could probably drop a few degrees off the cold outside temp end. While your away it's going to warm, I would...

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Grant Aerona 13KW - can I boost it?

That sounds cheap - well done. Much cheaper than us.

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Grant Aerona 13KW - can I boost it?

I have been generally following the thread with interest. Couple of things I am having trouble to reconcile House only 8 years old and well insul...

7 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Ducting an air source heat pump for the purpose of potentially fitting it the cellar

Would doubt it. But my 6kW inverter ASHP is running at around 4 to 5kW are the moment no less. So cascade them you should be able to 3x 3kW when reall...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Ducting an air source heat pump

No idea how big a heat pump you need, but this would easy to do, or even cascade 2x.

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
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