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Uk_pete_2000
@uk_pete_2000
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Joined: Nov 11, 2024
Last seen: May 15, 2025
Profile Activity
Topics: 1 / Replies: 82
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RE: Grant Aerona3 R32 HPIDI17 performance in low temperatures

@davidm06 forgive me but you must be freezing at 10c inside. Most people have it set to around 20•c

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Real world connection to a heat pump over modbus

Have been able to find out what information you can get from the grant and also if anything can be 'set' ?

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Grant Aerona3 R32 HPIDI17 performance in low temperatures

Hi, ours is a 13kw system. Are you talking about heating the home or DHW when you say 10c ? Or is that outside temps

6 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Balancing a low loss header/buffer tank on a Grant Aerona 2 13kw r32 system

@jamespa sorry my bad. Yes it's the middle readings that have a temp probe. The are ordered as ABCD I've just turned on all the pumps and set them t...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Balancing a low loss header/buffer tank on a Grant Aerona 2 13kw r32 system

@jamespa We can ignore the house heating load. Yes it's low on the ch side, it only needs 23° - 25° in the ufh to get to 19° in the room. Grant a...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Balancing a low loss header/buffer tank on a Grant Aerona 2 13kw r32 system

Yes we now know it is oversized, but at the time we didn't so did not question the maths / sizing etc. Only after we have run it and found we did not ...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Balancing a low loss header/buffer tank on a Grant Aerona 2 13kw r32 system

Happy to answer any and all question but i have no idea of the various acromns used, or what each one means I just read the meter that's attached to t...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Balancing a low loss header/buffer tank on a Grant Aerona 2 13kw r32 system

That's fine. We use 1300kw of electricity. No idea what heat this produces as installed said we lost nearlly 30,000kw which work out we needed 10kw of...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Balancing a low loss header/buffer tank on a Grant Aerona 2 13kw r32 system

We have 24 loops as the house is 500m2. Due to the size, we would not get any decent loops if all run from one spot of the house. Hence 3 manifolds an...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Balancing a low loss header/buffer tank on a Grant Aerona 2 13kw r32 system

@jamespa the problems is two fold - 1/ I have to run the ashp much higher than required to get the right amount of heat in the ufh. ( ie the ashp ha...

8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Topic
Balancing a low loss header/buffer tank on a Grant Aerona 2 13kw r32 system
8 months ago
Forum
Air Source Heat Pumps (ASHPs)
Replies: 14
Views: 1193
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