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Uk_pete_2000
@uk_pete_2000
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Joined: Nov 11, 2024
Last seen: May 15, 2025
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Topics: 1 / Replies: 82
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RE: Grant Aerona3 - Home Assistant control via Modbus

Correct and I still stick by it as this is a discussion on automation and getting control of the HP to respond to circumstances. In the end all a WC...

3 months ago
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Air Source Heat Pumps (ASHPs)
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RE: Grant Aerona3 - Home Assistant control via Modbus

@johnmo Not sure, I think it was a couple of times. On checking traced it back to return temp matching outgoing temp. It then cycles the water unti...

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Grant Aerona3 - Home Assistant control via Modbus

@jamespa There is a lag in response no matter which you chose, depending on the mass of the heat sink and ours is large. There would also be a buil...

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Grant Aerona3 - Home Assistant control via Modbus

@jamespa Yes the basic principle is correct, but by using that mirror and knowledge you know that if the temp is falling / gaining then x amount...

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Grant Aerona3 - Home Assistant control via Modbus

@johnmo Having never had a gas boiler, I can not commit on that. All I understand about them is that they run high temp to warm up a house, within ...

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Grant Aerona3 - Home Assistant control via Modbus

@jamespa Yes there are a lot of people running WC and there are a lot of people who make changes to those WC curves during the winter as the house...

3 months ago
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Air Source Heat Pumps (ASHPs)
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RE: Grant Aerona3 - Home Assistant control via Modbus

Hate to burst people bubbles, but WC will never match the house heat loss. The only way to do that is by using the internal house temp and adding / re...

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Grant Aerona3 - Home Assistant control via Modbus

@johnmo Yes, we have about 300m2 of UFH, over 3 manifolds. One manifold is then split to deal with radiators upstairs. Our return temp is around ...

3 months ago
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Air Source Heat Pumps (ASHPs)
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RE: Grant Aerona3 - Home Assistant control via Modbus

@johnmo This is not too much about micro-management of the HP, but about getting more from it. I have a Grant 13kw, two to three times larger tha...

3 months ago
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Air Source Heat Pumps (ASHPs)
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RE: Grant Aerona3 - Home Assistant control via Modbus

@johnmo "Why not use the original manufacturer controller (Chofu) which is hidden away in a cupboard" If you do a search on Gibhub or Internet, s...

3 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Grant Aerona fine tuning advice needed

@stopbar We have a 13kw R32 Grant and found running 30/-5 & 25/15 works (its a very efficient house). Most of the time I just run it off flow...

4 months ago
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Air Source Heat Pumps (ASHPs)
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RE: Grant Aerona3 - Home Assistant control via Modbus

Hi, Had a look over the information / video and though I can just about follow it and may be able to take a stab at it, I think its a little too muc...

4 months ago
Forum
Air Source Heat Pumps (ASHPs)
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