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market-farming - Re: greenhouses

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Subject: Market Farming

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Chronological Thread  
  • From: Alex McGregor <waldenfarm AT sprintmail.com>
  • To: market farming <market-farming AT franklin.oit.unc.edu>
  • Subject: Re: greenhouses
  • Date: Mon, 25 Sep 2000 09:39:42 -0400


Bill's suggestion is a good one- using 2 layers of film with a fan. This
gives you more
energy conserved in heating than used to run the fan.

Another possibility is multi-layer polycarbonate panels. They look like
cardboard with
air spaces between 2 or 3 very thin layers of Plexiglas. They last longer,
but are more
expensive than film. They work great on lean-tos and houses of the same
design (shape)
as those designed for glass. However, they're much lighter than glass and
don't require
as heavy of a frame.

alex McGregor
Walden Farm





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