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  1. #26
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    Haved a edwards solar hot water system in australia very good system living near tamworth in the outback the importent to keep the glass clean from the dust so had to clean it 6 weeks. www.edwards solar.com.au

  2. #27
    Member HINO's Avatar
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    Here's a company that responds and I have not seen them mentioned here in this thread. I am looking into the water piping system. I got a ton of info in a matter of minutes last night about the pipes. Check it out.

    Solar Water Heating Systems - SIAM GREEN POWER International


    If you take the time to do the job right the first time you won't need to "find" the time to go back a second time

    HINO

  3. #28
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    They are the same I believe as Siam Consulting which I mentioned earlier.

  4. #29
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    thanks to you all

    I am looking into it, and the pipes you mentioned

    At first glance, it looks like a good site. I am awaiting the costs now
    Last edited by DrAndy; 15-01-2009 at 11:50 AM.

  5. #30
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    I have just received the costs for the solar panels and tanks

    the small version is approx B125K!!! and the medium B160K

    slightly more than the B32k they were at Global House

    I am awaiting the pipe costs with trepidation

  6. #31
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    They use a lot of them out here Dr A. In Kimchistan.

    Big fuckers they are too. Must be 2m2 heating area with dirty great big tanks stuck on the roofs.

    If I remember I will snap some shots of them

  7. #32
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    Like that but usually bigger, I've been quite surprised by how large they make them. Also thought it a bit strange for being a fairly cold country for three months of the year

  8. #33
    Days Work Done! Norton's Avatar
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    Quote Originally Posted by DrAndy
    the small version is approx B125K!!! and the medium B160K
    Jeez! Unless you have an overriding urge to save the planet from global warming, suggest you do an ROI calculation.

    Will probably take about 60 years of electricity cost to reach a break even point!

  9. #34
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    yeah, exactly, not worth it

    I had a small one built by a friend for B20k, it works OK, but not wonderful in cloudy weather. Prob also needs a bigger tank for more than two p[eople

    I will have to see if Global House gets resurrected soon in CM
    I have reported your post

  10. #35
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    Quote Originally Posted by DrAndy
    I will have to see if Global House gets resurrected soon in CM
    There's GH in Udon. Do you want me to have a look for you when I'm there in a few weeks time?

  11. #36
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    have a look, sure, but I will need to buy one

    don't suppose it will fit on the bike

  12. #37
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    Quote Originally Posted by Loy Toy View Post
    ^ I have been using solar panel heating for about 8 years and have never had a tank crack. Yes they need servicing after about 5 years with some of the connection couplings being replaced but never a tank rupture.

    Was your system water gravity fed or pumped through?

    the tanks can crack, on some systems, if they are connected to the usual on-demand pumps, due to the constant pressure variations

  13. #38
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    Quote Originally Posted by DrAndy
    don't suppose it will fit on the bike
    I'll get a price for delivery to CM.

  14. #39
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    That price sounds way to much.

    Which company was that from ?

    There is a solar hotwater company with a shop down the road from us, i will get their number for you.

  15. #40
    Member deepee's Avatar
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    I run a" Solahart" 200ltr hws on my roof .The system is run off the mains h2o supply so is under some pressure ,and after 12 years use I have only just had the inlet cock and pressure outlet valve die due to minerals build up -both are ruggered copper units as the system often boils and will dump some excess h20 (or the system could explode.) Cannot imagine a system using plastic components as they would get cooked.
    The tank has a replaceable sacrificial anode in it and this is supposed to be replaced each service (5 years?) , it helps stop tank break downs so I'm told ,altho I have never had mine done.
    This brand and a heap of others are made by the same company -was originally an Aussie outfit but now owned by the Malaysians and are available around Thailand

  16. #41
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    Not plastic pipe/components DP.....looks like pvc, but much thicker, but ain't pvc....can handle very high temp no problem.

  17. #42
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    polybutalyde or some such name, I think

    same as used for hot water piping

    it is a plastic, but specialised

    the Solahart site looks promising

    and thanks Marmite, you could check for me at GH

  18. #43
    Thailand Expat nedwalk's Avatar
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    i,m an agent for 'edwards' here in ozzie, bloody beaut units too

  19. #44
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    good, send a couple over, Ned

  20. #45
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    no worries mate

  21. #46
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    Dr Andy,
    I did not mention that our system puts out more than enough hot water for the 2 of us plus the odd blow in that I sometimes cover the collecting panel in light guage shade fabric during the hotter months,if not the thing tends to send run far too hot for us.
    In places like BKK with the smog levels ,I think that things may be a bit different but these systems can put out good warm h2o by just contact with the hot air outside .
    Lots of them can be seen on roofs in the big smoke( hotels) and most people presume the collectors are for photo voltaic panels

  22. #47
    Days Work Done! Norton's Avatar
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    Andy, I was at Global House yesterday and looked at a couple of units they have. FYI:

    165 litre model - 39,000 baht
    200 litre model - 49,000 baht

  23. #48
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    Here is a link to a US Gov site that explains the different types of solar heater technology and also a guide to computing total costs one way or the other. I am quite interested in the cost and upkeep side of the question. EERE Consumer's Guide: Solar Water Heaters

  24. #49
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  25. #50
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    Try googling this

    US Government Energy Efficiency and renewable energy

    I just need to post more sorry for the wasted bandwidth

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