[NAFEX] vent openers

Lisa Almarode lisaalmarode at yahoo.com
Fri Jan 2 15:30:31 EST 2004

Charlie's Greenhouse, www.charleysgreenhouse.com,
has a solar-powered fan unit for about $80 that I've 
been eyeing.  It's only 7 cfm but it seems like it 
would be enough to get a little ventilation going; I 
find I still get overheating with vents open, though
of course it's not as bad.

Lisa in Ashland Oregon
USDA Zone 7, Sunset Zone 7, 1800'

>   Does anyone have a good source for solar vent
> openers?  I am trying to build a few cold frames
> with a lexan glazing, but need a simple and reliable
> way to prevent overheating.  I am definitely in the
> hobby category and cannot stay at home to manually
> open the lids.  Any suggestions would be much
> appreciated.

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