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MikeFl
MikeFl
@mikefl
Member
Reputable Member
Joined: Apr 17, 2023
Last seen: May 8, 2025
Profile Activity
Topics: 1 / Replies: 117
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Reply
RE: Grant Aerona circulation/system pump staying on

I'm close enough to the pump to hear it running, but the compressor isn't on, just the pump. And it ties in with the outdoor temp being between 3C and...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Grant Aerona circulation/system pump staying on

I've just checked on my controller and Frost Protection symbol isn't on, even though Frost Protection is running. The explanation of all of the symbol...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Grant Aerona circulation/system pump staying on

This is part of the Grant's 'frost protection' system (as opposed to the 'defrost cycle' which we're all familiar with in this type of weather!), whic...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Season’s Greetings

Same to you. Thanks for providing this forum for people to learn from and to teach each other. Here's to a higher COP and a lower energy bill in 2024!

1 year ago
Forum
Well & Truly Off The Grid
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RE: Is the Grant controller a thermostat?

@heat_help Hi. You seem to be saying "flow rate" at some points and "flow temperature" at others? As you probably know, the flow rate on a Grant is fi...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Installation queries for Grant Aerona

@jwilliams89 The house is around 150m2, split 110/40 (it's a converted bungalow, which is why the split is so unbalanced). Hence the K3s are downstair...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Installation queries for Grant Aerona

@jwilliams89 From my experience, the radiators were sized correctly. I have 5 (I think) large K3s downstairs. One is 84Kg empty, so you need something...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Installation queries for Grant Aerona

@allyfish This sounds very positive, although I'm a little sceptical at the moment. I hope they can retrofit these better controls, as the current one...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Holiday mode vs thermostat control

I believe 'holiday mode' achieves the same thing i.e. during the times you mark as holiday, a fixed temp target is set. This tends to be controlled by...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Do ASHPs work with poor insulation?

Good that they are discussing EPCs and how they don't favour ASHPs. The whole EPC rating system is a joke at the moment - no training, no standards, ...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Installation queries for Grant Aerona

@jwilliams89 As someone who's had a Grant installed under ECO4, part of the problem (I suspect) is in the company trying to tick all of the required b...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Is the Grant controller a thermostat?

I'd echo what @allyfish said. I too have a 10kW Grant, and about 150m2 to heat. During the cold snap I was consuming 50-60kWh per day, and this didn't...

1 year ago
Forum
Air Source Heat Pumps (ASHPs)
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