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Buying used thermal panels

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Posted by EIsmith on June 18, 2010, 2:03 pm
Does anyone have experience or pointers for cking out used flat thermal
panels? I'm planning a drain back system for domestic hot water and have
been keeping an eye out for some used panels. Now that I've found a few to
look at I'm  wondering if  there are any pitfalls to look for. So far the
more obvious things seem to be ck for leaks/ fit of glass / damage to the
case / broken fittings. What about the haze that appears on some of the
glass? is this normal or an indicator of a problem?

Thanks in advance


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