the great unknown

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Moderator Post (s) for this thread: > Not a Problem by homebild on 06/10/2008

The question to ask would be to have some clue as to how long the panel will last with moisture from inside collected and frozen at the inner surface of the roof due to being non-vented. Non-vented isn't the same as hermetically sealed against moisture.

www.heatpro.us energy businessmen's knowledge

Yes, you really have to find out the MAKE and MODEL to get good answers. There IS more than one machine made.