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Mike Patrick
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Mike Patrick
@mike-patrick
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Honorable Member
Joined: Mar 23, 2021
Last seen: Jul 22, 2025
Profile Activity
Topics: 18 / Replies: 154
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Reply
RE: Thinking about Solar PV

Does anyone have any experience of solar PV panels which replace the slates on a roof, rather than sitting as a panel on top of it? The rising price...

4 years ago
Forum
Solar Photovoltaic (PV)
Reply
RE: Energy Performance Certificates (EPC)

I just came across this: It claims that an ASHP makes an EPC rating worse than if the same property were heated with gas, because of the way the...

4 years ago
Forum
Government Schemes, Regulations, Planning & Organisations
Reply
RE: 9kW Grant Aerona

Derek, Sorry for not following up earlier on our conversation, but I have only just had an opportunity to have another look at my ASHP controller se...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 9kW Grant Aerona

@derek-m Derek, I'm based near Witney, Oxfordshire. Skype account uses same email addrres as here mjpatrick@protonmail.com 10am tomorow will ...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 9kW Grant Aerona

@derek-m Yes, that’s very kind of you. I can do Skype. I’m next working from home on Friday so that would be a good day. Next week I’m home on Tu...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 9kW Grant Aerona

@derek-m A big reason why, 5 years after installation, I'm still trying to optimise the system is my lack of confidence in local heating engineers....

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 9kW Grant Aerona

Derek, I increased the room thermostat by 1C in one room (all 13 would have been too much) and left it for an hour. It did appear that the temperat...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 9kW Grant Aerona

Derek, The system has individual thermostats in each room, which are independent of each other so can each have their own timing schedule. I've no...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 9kW Grant Aerona

@derek-m Derek, Sorry for the delay but I've now read the remote control My instruction manual is May 2016 but I think table 10.3 is the same...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 9kW Grant Aerona

@derek-m Derek, I haven't forgotten this, but am busy with work and it will take me a while to dig out the documentation. If it's possible to i...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 9kW Grant Aerona

@derek-m Derek, The COP rating on the label on back of the pump is given as 2.66 based on Air at 7 deg and water at 55 deg. The total heat loss...

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 9kW Grant Aerona

@derek-m Here are my charts, cut and pasted from an Excel spreadsheet. Mike

4 years ago
Forum
Air Source Heat Pumps (ASHPs)
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