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Everything posted by ProDave
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Suppliers of low u value / 3g quite large IGU?
ProDave replied to ElliotP's topic in Windows & Glazing
Rationel would probably do that as well. -
3 phase electric supply from 3 same phase cables?
ProDave replied to WWilts's topic in Electrics - Other
That raises an interesting question: So a 3 phase EV charger actually need 3 phases? If it just goes into a rectifier to produce DC to charge a battery, then probably not. I wonder what manufacturers would say? -
3 phase electric supply from 3 same phase cables?
ProDave replied to WWilts's topic in Electrics - Other
What is the reason for wanting 3 phase? If it is just more capacity then three single phase supplies would do that. If you NEED to run some 3 phase equipment, you will need a phase converter, but they are expensive and not a whole house solution. -
I picture would help, but the obvious solution is reduce the ground level next to the house?
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Temporary power to static caravan
ProDave replied to DragsterDriver's topic in General Self Build & DIY Discussion
Yep, never run both together off such an arrangement. -
I don't speak Dutch, but wasn't that mentioned recently? A solar PV system with solar thermal strapped on the back, feeding a water to water heat pump.
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For interest I went on Uswitch this evening and after entering all my details "sorry no switches available at the moment" so nobody is taking new customers.
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Octopus have told me my standard variable rate will rise to 20.24p in October. Are they REALLY saying north of Scotland Octopus Go will be rising to 24.6855p? Bang goes any saving switching to GO? Good job I have not yet requested a smart meter.
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At the back of our sun room, not visible from inside. I might make a cupboard around them some time.
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Anything you burn sends CO2 up your chimney. The atmosphere does not differentiate between new CO2 and millions of years old CO2. It does the same regardless. From the planets point of view the best thing you can do is make something from your wood rather than burn it. If you want to pretend that burning recently grown wood is carbon neutral then go ahead, after all that is what they believe with DRAX but the rest of us won't be convinced. P.s I do burn wood mostly from our own trees but I have never claimed it is carbon neutral, I know it is NOT. Wood burning is a useful source of secondary heat, particularly if you have the trees to collect it from and it all comes as part of normal management of the trees, but please don't kid yourself you are helping to save the planet by burning some of it.
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Temporary power to static caravan
ProDave replied to DragsterDriver's topic in General Self Build & DIY Discussion
Re the Graff. I would probably buy a free standing caravan porta poti and use that with the appropriate chemicals and take it to a public toilet to empty it until you get power. The cost and noise of running a generator 24/7 would drive me insane. -
My take would be you still owe them £5000. Make it clear to them that if they try and pursue this e.g. through the small claims court, that you will counter claim all the additional expenses you have incurred due to their delays, mistakes and incompetence, and your counter claim will be for more than their final bill.
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Temporary power to static caravan
ProDave replied to DragsterDriver's topic in General Self Build & DIY Discussion
How much power do you need? Typically a static caravan will have a gas fire, a gas water heater and a gas cooker. So your electricity usage in the short term will be pretty low. I would be looking at a few rechargable LED camping lights and then run the generator for only a couple of hours at a time condensing all your "needs electricity" activity into one time slot. -
Newbie Question - Ethernet between rooms
ProDave replied to Sfuller's topic in Networks, AV, Security & Automation
Yes, just be aware of what might be in the wall before drilling holes in it. -
Combined PV and thermal collector to heat pump
ProDave replied to Temp's topic in Photovoltaics (PV)
So by strapping the collector to the back of the PV panels, he has turned his water to water heat pump, into an air to water heat pump. -
Lets do my usual sum. This allows you to store and use 5kWh of your free solar PV that would otherwise get exported. At typically 18p per kWh that would save you 90p per day. Now you won't have that much surplus every day, lets say you have that much surplus on average 180 days per year. So this battery could save you about £162 per year. So just under 8 years payback. by which time the batteries will have done 1400 charge / discharge cycles or more. Getting closer, but still not there yet for me.
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I suspect it will disappoint. A bit like vertical axis wind turbines look an attractive idea until you look at the details and they are not as efficient as a conventional turbine.
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I am just north of Alness. We did have another member building up your way but he has not been on for some time. I would be very surprised if you could truck material in from England any cheaper, that sounds rather dodgy to me. A 7.5t licence is very handy, we used it for the house move up from England and again when I hired a 7.5t flatbed to collect a load of scaffold.
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You FIT contract is at a set price (depending when the panels were installed) so there would be no benefit to you whatsoever moving the FIT to another provider. So just keep it where it is and keep providing the meter readings.
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I doubt there are many people who waste much. I am constantly looking for ways to reduce our usage but have failed, because nothing is on that is not on for a purpose. I guess I could watch less television in the evening. Wear my clothes for longer before putting them in the wash so fewer washes. Shower only once a week? But none of those options are attractive. Bear in mind less than half of our energy use is heating the house and hot water. You would think there was scope for some non heating use savings but I can't find them. Re solar PV, I self use probably 95% of what we generate without batteries so I have concluded at the moment battery storage is really only viable if you have substantially more than 4kWp
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Yes, my designer initially wanted extra foundations to support sleeper walls for intermediate support of the downstairs joists. I said no. the first floor joists can span that gap without intermediate support so the ground floor joists can as well.
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Help with potential self build project.
ProDave replied to TheRivieraKid's topic in General Self Build & DIY Discussion
The build cost will be similar to an empty plot, but you will have to add demolition cost of the prefab which will certainly contain a lot of asbestos. So if you budget £2K per square metre for the build that will be an outlay of about £800K. What would the finished property be worth? -
I learned that lesson in an industrial unit. I was there to change the hand dryer in the gents toilet. So I switch off the MCB labelled "Gents toilet" and heard a groan from the end of the corridor where I had just turned off an office full of people using computers.
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The usual reason for joining 2 apparently separate lighting circuits is when you find a borrowed neutral. It is found most on landing lights where the light may have got it's L from the downstairs light circuit and N from the upstairs light circuit. If you reduce the image to a smaller size (in Kb not necessarily pixels) you can upload it to the forum. I find the latest version of PhotoScape is good at producing very efficient size photos.
