Home  5  Books  5  GBEzine  5  News  5  HelpDesk  5  Register  5  GreenBuilding.co.uk
Not signed in (Sign In)


Green Building Bible, Fourth Edition
Green Building Bible, fourth edition (both books)
These two books are the perfect starting place to help you get to grips with one of the most vitally important aspects of our society - our homes and living environment.

PLEASE NOTE: A download link for Volume 1 will be sent to you by email and Volume 2 will be sent to you by post as a book.

Buy individually or both books together. Delivery is free!

powered by Surfing Waves

Vanilla 1.0.3 is a product of Lussumo. More Information: Documentation, Community Support.

Welcome to new Forum Visitors
Join the forum now and benefit from discussions with thousands of other green building fans and discounts on Green Building Press publications: Apply now.

    • CommentAuthorGBP-Keith
    • CommentTimeDec 2nd 2013
    Hi does anyone know where I might be able to buy the spring material that restrains the blades on a proven machine.

    I have just had a 'spring break' and Kingspan only sell full sets and it seems a real overkill as they suggest re-drilling the blades etc to install them. However on inspection the existing springs are mounted really cleverly and just twist on or off of the brackets during a dismantle, so simple individual spring replacement would be most logical and eco choice.

    Any help that can be offered would be appreciated - there must be a low-tech solution to this.
    thanks, Keith
    • CommentAuthorEd Davies
    • CommentTimeDec 2nd 2013 edited
    Ask Paul Camelli who sometimes pops up on this forum. http://lifeattheendoftheroad.wordpress.com

    He's replaced the springs on his 2.5 kW and I don't think he's ever bought any bits directly from Proven/Kingspan. I know he makes his own bushes but can't remember whether he got proper springs elsewhere or something equivalent.

    I've emailed him to draw his attention to this thread.
    • CommentTimeDec 2nd 2013
    Are they 'spring steel'. Usually comes as a sheet and you cut out what you want. Sold at engineering suppliers or steel stockists. Post a picture up.
    • CommentAuthorGBP-Keith
    • CommentTimeDec 2nd 2013
    Thanks for the comments. I may have found a firm prepared to make them up as a special order. I've been given a guess-timate of about £8.00 per spring which sounds very reasonable so I'm going to send a part of broken spring to them tomorrow to see if they can match it. I'll report back when i hear from them. if it comes off then I'll buy about ten of them for stock I think.

    They are not flat but coiled springs steamy.
    Hi Keith,

    the springs are stainless steel and if you can get them for £8 each then I'll take 27 :-) My turbine has been up for eight years now and I've always managed to find second hand springs but I'm down to my last one now so would be seriously interested if you can find a supplier.

    Just a note about a full set Keith, they will include the heavier upgraded yolks that hold the springs, hence the drilling bit. The new yolks are M10 instead of M8 and cast instead of pressed. I'm still on my original small sized ones but it's only because I've been able to scrounge spares, If you read my posts below you'll see what I mean, mine broke once and I cobbled something together

    As far as repairing and replacing all the other gubbins then these may be of interest lifeattheendoftheroad keeping the lights on/2013/02/10/ and perhaps better lifeattheendoftheroad/2012/05/29/site-temporarily-unavailable/ which has some links for the nylon bits.

    edit, OK I can't post the link but I'm sure you'll find it

    Good luck, Paul
    • CommentAuthorGBP-Keith
    • CommentTimeDec 4th 2013
    Hi paul, that will certainly throw a diff light on price! I'll tell the supplier but i guess they will work it out from the sample that i sent them. Anyway, Kingspan have been really, really helpful talking me thro this so far so and now I'm looking at a couple of solutions.
    Re the youk attachments, I had a local fabricator upgrade mine a few years ago to m10 on a bigger bracket and they still look good. One of my smaller ones broke a few years ago so I changed the lot. I'll track down your website soon, I'm stuck on an overdue issue of the mag at the moment.
    Thanks for your help.

    In the meantime, because i'm an idiot, I'm running my machine on pairs of springs rather than trios and it seems to be generating better. What phenomenon is that?

    kingspan happened to mention (but certainly not recommend) that offgrid machines ran on two springs - mine is offgrid but came with three. Any ideas?
    Well I never, certainly the early ones had two springs, I just assumed they'd 'upgraded' because they were breaking. Re, your supplier I'd be very interested in at least nine and know of several Proven owners who'd be interested in them too. Certainly Kingspan are far better at customer service than Proven ever were.

    Good luck with the excellent magazine, Paul
    • CommentAuthorGBP-Keith
    • CommentTimeDec 5th 2013
    OK paul I have a price now for replacement springs manufactured in stainless steel to match the pattern spring that I sent them. They want £14.75 per spring plus VAT and about £11.00 for delivery of ten (probably the amount that I'll order as spares). i would imagine that if more people wanted some I would be able to get them to drop the price because they jig up and create them to each order. For instance if I was to order just one spring then they told me it would be about £45.00.

    Kingspan kindly sold me a couple secondhand ones they had which gets me out of my immediate problem so no hurry for me now. Is it worth asking around do you think to see if others want to buy some at the same time?
Add your comments

    Username Password
  • Format comments as
The Ecobuilding Buzz
Site Map    |   Home    |   View Cart    |   Pressroom   |   Business   |   Links   

© Green Building Press