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Marvinator80
@marvinator80
Member
Honorable Member
1415 kWhs
Joined: Nov 29, 2022
Last seen: Feb 24, 2025
Topics: 8 / Replies: 183
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RE: Our Grant Aerona R32 13kW ASHP installation

Another frosty night. Woke to an average downstairs temp of 18.1 upstairs 18.0. it needs to do better than that. If it can’t do better than that b...

1 year ago
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RE: Any Grant Aerona owners using their Low Loss Header immersion heater?

There is no obvious space for the LLH in our utility room. Perhaps that is why it wasn’t installed. I wonder if adding an external volumiser would be ...

1 year ago
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RE: Our Grant Aerona R32 13kW ASHP installation

Hello. So this will be our first full winter with the ASHP. It was installed around the 20th of January last winter and has been fine. One slight issu...

1 year ago
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RE: Any Grant Aerona owners using their Low Loss Header immersion heater?

I think it’s safe to say it isn’t connected up. I’ve just looked at what the LLH itself should look like and seemingly I don’t have one. I’m pretty su...

1 year ago
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RE: Any Grant Aerona owners using their Low Loss Header immersion heater?

Just went into the LLH parameters from Mike’s link. Mine was completely off. Now set to 3 and it also allowed for the LWT during defrost to be adjuste...

1 year ago
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RE: Any Grant Aerona owners using their Low Loss Header immersion heater?

@mikefl hi Mike. Is this meaured in the same settings as you told me about the other day to measure the LWT and return temperature? Or configurable vi...

1 year ago
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RE: Grant Aerona 13KW - can I boost it?

Woke to 17.5 to 18.5 throughout the house. Low of -6 overnight. have identified an issue though as the utility room was freezing and no feeling of ...

1 year ago
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RE: Grant Aerona 13KW - can I boost it?

-3.5 outside now and indoor temps slowly rising, despite the defrost cycles every 45 mins.

1 year ago
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RE: Grant Aerona 13KW - can I boost it?

Now it’s at -2 and LWT hanging tough at 37. Big difference. The defrost cycle seems to be for 5 mins every 45 mins and that’s why it’s not getting bac...

1 year ago
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RE: Grant Aerona 13KW - can I boost it?

just back from a rare day at the office and checked the temps. OAT 1.0 LWT 52!!!! Return temp 47!!! Energy use zero difference from yeste...

1 year ago
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RE: Grant Aerona 13KW - can I boost it?

Yeah it’s the defrost cycle that’s fecking me up for sure. A few parameter adjustments made and going to get it all to a higher base from above zero, ...

1 year ago
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