wrote in message
oups.com...
Apparently during this two
to three week period a dip to 31 degrees requires they get some huge
fans out to warm the trees. This is the reason for the page. As much
as I'd like to spend the time designing a system to do this the
customer is a commercial orchard and probably will be willing to spend
a few bucks to just have the situation resolved. I hope this clarifys
things a little. Thanks, Lenny.

http://hpsweb.honeywell.com/Cultures...ss/default.htm

may be a starting point.