hello!! i would like to know if which insulation is best used in a DIY solar water heater?

i am constructing a solar water heater now as one of the requisites in our curriculum and I'm wondering what is the cheapest way of constructing it? O...


i am constructing a solar water heater now as one of the requisites in our curriculum and I’m wondering what is the cheapest way of constructing it?


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One Response to “hello!! i would like to know if which insulation is best used in a DIY solar water heater?”

  1. gazi r says:
    April 2, 2010 at 7:57 am

    Use rock wool, or polystyrene these are the cheapest material for insulation

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