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GrahamF
GrahamF
@grahamf
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Reputable Member
Joined: May 2, 2025
Last seen: Dec 3, 2025
Topics: 6 / Replies: 93
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RE: delta T = 10 (Daikin)

That seems like a large number. Our Grant Aerona 290 15.5kW is running with a Delta T between outlet and inlet of 2.7C at a current flow temperature ...

3 months ago
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RE: Heat Pump Damage on install - useable or dealbreaker?

They have already been dishonest by not telling you about the damage, so it is not surprising that they are telling you that it doesn't matter. You a...

3 months ago
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RE: Who’s Caved and Switched the Heating On Already?

In the last week, the external temperature in south Manchester has varied between just under 10C and 19C. We certainly have had the heating turned on...

3 months ago
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RE: COP is not the only measure of efficiency

@jamespetts Interesting post, thanks. Here are my thoughts: 1. It is your comfort, your system and your money, so feel free to run it how you like...

3 months ago
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RE: A Customer's Lessons Learnt from a Heat Pump Installation in a Large House

@judith thanks for your suggestions. Starting from cold with the hot tap fully open, it takes 50 seconds for the water to come through warm in the ki...

3 months ago
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RE: Failing heat pump system - seeking thoughts on a rebuild

It would be helpful to know a bit more about the central heating. You say that it struggles to keep the house warm in winter: - Are you confident t...

3 months ago
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RE: Samsung Controls

@old_scientist sorry, I should have made it clear that I own a Grant Aerona, rather than a Samsung. For comparison, I access the data history via eit...

3 months ago
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RE: A Customer's Lessons Learnt from a Heat Pump Installation in a Large House

After our rather lengthy meander off piste, I thought I would return to topic and update you on progress. The summary is that it is all going well w...

3 months ago
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RE: Samsung Controls

Are you checking on the Samsung controller itself, or on a web site?

3 months ago
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RE: Seeking Help for In-Principle Quote to fix a botched heat pump installation by Heat Geek Installer

@drei I was very sorry to read this heartbreaking story. It is bad enough to feel you have been ripped off, but being cold at home with your family m...

3 months ago
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RE: How Do I Know When the Hot Water Has Run Out?

@transparent that is a very interesting suggestion, thanks.

3 months ago
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RE: How Do I Know When the Hot Water Has Run Out?

@judith thanks for your thoughts on this. It is interesting how you vary the settings, depending on who is in the house. I have just increased our n...

3 months ago
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