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Derek M
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Derek M
@derek-m
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Illustrious Member
Joined: Mar 4, 2021
Last seen: Sep 19, 2024
Profile Activity
Topics: 7 / Replies: 4405
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RE: Solar PV for our shed

I am assuming that you don't have a 240v power supply to your shed. I suppose that it depends on how many lights and their power requirement and how...

3 years ago
Forum
Solar Photovoltaic (PV)
Reply
RE: Wood burning stoves

@majordennisbloodnok If my memory again serves me well, to drive out the tars and oils from wood requires heating to several hundred degrees. When d...

3 years ago
Forum
Wood Burners, Biomass, Small Scale, Biofuels & Other Heating Alternatives
Reply
RE: Wood burning stoves

@majordennisbloodnok I carried out some research on the properties of wood when I was working on a project at Slough Heat and Power, when they had j...

3 years ago
Forum
Wood Burners, Biomass, Small Scale, Biofuels & Other Heating Alternatives
Reply
RE: Extra Low Voltage devices

@majordennisbloodnok I share your concern that having spent time, effort and expense installing all the necessary equipment, there would actually be...

3 years ago
Forum
Energy Storage
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RE: Extra Low Voltage devices

You may find this of interest.

3 years ago
Forum
Energy Storage
Reply
RE: 14kW Midea ASHP in an old leaky building

@cathoderay I have attached a copy of the spreadsheet for a 14kW Ecodan for comparison. Ignore the #DIV/0 calculations at lower ambient temps which ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: 14kW Midea ASHP in an old leaky building

@cathoderay You are indeed correct that, according to their own published data, Midea ASHP's are particularly poor at maintaining their specified ou...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Name and shame heat pump installers that have done shoddy work

@editor I don't know how this would stand legally, but it would be useful to know the names of the people involved with Greenfoot, just in case they...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Extra Low Voltage devices

@transparent I welcome and indeed encourage your efforts to help mitigate the effects that both renewable energy production and modern energy applia...

3 years ago
Forum
Energy Storage
Reply
RE: Extra Low Voltage devices

@transparent Having worked on and helped design many highly complex systems over the years, one of the things that I learned fairly quickly was keep...

3 years ago
Forum
Energy Storage
Reply
RE: Extra Low Voltage devices

@transparent I am rather confused as to what you are actually trying to achieve. It would appear that your intention is to take 48v DC, convert it...

3 years ago
Forum
Energy Storage
Reply
RE: Solar diverter impact

It would never be a 1:1 ratio because your gas boiler is not 100% efficient. It could also be that your estimate of the amount of energy diverted is n...

3 years ago
Forum
Solar Photovoltaic (PV)
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