[RE-wrenches] best method for covering solar thermal collectors?

[Nik Ponzio]

Hi Wrenchers,

What have you found to be the best way to cover flat-plate collectors? I
have several systems that need to be filled about 2 months before
occupancy. The Heliodyne collectors I used for this project do not have a
protective film like the Viessmann collectors.

Any feedback is appreciated.
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