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Old January 9, 2009   #41
OneoftheEarls
Tomatovillian™
 
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Join Date: Feb 2008
Location: Up North
Posts: 660
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I use heating trays with a variable temperature control. Without a variable...these will MELT a plastic tray...want to know how I know? lol

These are found in rummage type stores for @$5.

I run these with a system I built for flourescent lights.

This year I have a greenhouse to try and use.
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