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Onoff

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Everything posted by Onoff

  1. These sorts of things: & this: https://www.rawlplug.co.uk/products/bonded-anchors/bonded-anchors-accessories/installation-accessories/r-pls/
  2. Any idiot could do that. It takes a really special sort of idiot to do what I'm proposing...
  3. This from another forum and a bit of a guru for all things solar imho: I'll keep it simple - GARBAGE. Unless he has a very old inverter then the Euro-efficiency rating is 95% for an older Sunny Boy. (unless he has a very old model which isn't 'transformerless' ). Optimisers can only add 25% if there are serious shading issues. Even then Sunny Boys have a feature called 'Global Optitracking' which is a shade compensation algorithm. I did have a report on optimisers versus a standard inverter from an independent tester called Photon International (German trade magazine) They can impove output when shading is an issue, but the report used a Grade B inveter, SMAs are 'Triple A' rated, and even then the gain wasn't as high as 25%.. Now optimisers are around £30each, a solaraedge inverter around £800, so that's about £1040. Scaffold, say £600, so that's £1640 - you can pay me £1k to fit it if you like - think that will cover my diesel A new SB is around £750 if you want the latest spec which runs at 96-98% efficiency at all but the lowest light levels. There's also nothing to stop you doing this work yourself anyway. Somethig like a Chinese Solis inverter is about £600 fitted - doesn't have shade compensation, and won't last as long, but efficiency is on par with SMA (more or less). I'm guesiing tht he has about 2kW of panels,, which should output around 2000kWh per year, so assuing the high original tariff of around 50p, then even if he did get 25% more that's worth about £250 per year, so even at £2.5k, that's 10 year payback. I've attached a Photon Report - it wasn't the one I was looking for and it's annoying as it doesn't say what the base inverter was. NB where there is no shading or even if the panels are dirty there can be small performance increases as the system doesn't have to compensate for differences in the panels themselves. I do fit Solaredge where shading is notable, btu other than that the additional cost does not merit the outputs gained. solaredge-case-study-photon-power-optimizers-1473941071.pdf
  4. Tonight he has someone coming round to talk about having an ASHP...
  5. Yes seen those. However they're only single pole. You can only wire them one way and they have two fly leads.
  6. This is my one, it's the mutt's nuts: http://www.drywall-emporium.com/durgun-45-pro-mortar--grout-dispensing-gun-29-p.asp The nephew bought the T'station one.....then took it back 'cos it broke and used mine.
  7. Resin with a mesh sock? http://www.fixfirm.com/category/fixings-screws-nails-anchors-chemical-anchors-resin-injection-anchor-sleeves
  8. As ever it's can I not should I!
  9. I don't want to / can't easily change the gearing on the valve actuator. Nor do I want to over drive the motor voltage wise even if for a short period. Altering the frequency seems OTT. Thinking a cheap Chinese 1000rpm motor (s) with a 2mm dia shaft. Most have a different mounting plate to the Premotec mounting flange so I'll have to make an adaptor. This is the motor frame size: 9904-111-32-series-synchronous-motors-datasheet.pdf
  10. In April 2016 he had EnergyTarget fit 3 extra panels taking him to 8 and a storage battery. £5K. I think it's them just quoted the £2.5K above and pushing the ASHP.
  11. I'm going to try and get him to come down to Build It Live at Detling and talk to @AndyT.
  12. Not in shade. At the top of a hill in fact. He has a history of getting conned!
  13. Mate has just been touted by a company called Solaredge. He already has 8 PV panels and a Sunny Boy inverter. This bloke wants to sell him 8 optimizers and a new Solaredge inverter for £4K. This on the basis his old inverter is only 85% efficient and the new Solaredge one 95% efficient. They'll buy back his Sunny Boy for £500 so £3.5K all in. Rekons it'll make his system 25% more efficient overall. My mate then rang the crowd who did his panels then latterly storage batteries and they've said they can do the same thing for £2.5K. All sounds b@llocks to me? Made the mistake of telling the second lot he's needing a new boiler so they're now after selling him an ASHP. I suggested Sunamp?
  14. Best idea EVER!
  15. Well I have the beginnings of a "drive"! A 24VAC valve actuator. Has an M8 threaded portion through it. A quick hole drilled thru and will "climb" an M8 threaded rod. Only problem is it's too damn slow!
  16. Just wondering if that was my problem!
  17. Don't forget there's the magazine fed loo roll dispenser WE still have to start/finish...
  18. Yep, that's about what I did centres wise. Did wonder if it should have been boarded first but if doing that might as well felt it!
  19. 2 maybe 4 bits of studding...chain drive...like a Bradbury car lift...but upside down
  20. I was thinking more using a sparecordlessdrill...
  21. Must admit I've used the corrugated bitumen panels (from Wickes) on a garage, even putting extra cross supports in and they were utter shite and then some. Washing up bowl size depressions formed between the supports and it just collapsed like wet carboard. BiL did the same with green ones on his workshop and it failed on there too.
  22. Expensive but I used lorry siding to redo the tree house roof. £80 for this bit: And I've done f.all else since I put it on!
  23. So.....what I need then is a rainfall shower head up on the ceiling.....that DESCENDS for cleaning at the touch of a button.....
  24. A few years back my Mum took a fancy to the neighbours new 3-piece. It was from a Welsh company SofaSofa. They had a "roadshow" in a massive, somewhat seedy hotel out near Heathrow. I was very dubious thinking "time share / hard sell" but took Mum up there and there was no hard sell or annoying pushiness. You just wandered around having a sit and if you saw something you liked there was half a dozen desks with their reps you went up to. She got a good deal from memory and it's still going strong. https://www.sofasofa.co.uk
  25. Cheers. What notch size trowel should I use for that? Tiles are 330x330.
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