I have used a solar wax melter very similar to the one referenced by Fisher
at http://www.beesource.com/plans/solmeltr.pdf except that I added
wheelbarrow type handles and a wheel so I can follow the sun and move it to
cut the grass.

This year, I was unable to locate the clear, thick, greenhouse film that I
have always used in the small size I needed.   So I paid a visit to my local
glass dealer.  I told him, in detail, including inside temperature, the
problem I was trying to solve and ask him to tell me what I needed.   I made
sure he understood I was trying trap heat unlike what most door and window
glass is designed to do.

He recommended what he called "insulating window glass".   He advised that
most medium to large glass dealers make it themselves to customer
dimensions.   It consists of two 1/8 inch thick clear (in my case) glass
panels spaced 1 inch apart, sealed all around and the space between the
glass is filled with inert gas (no more trapped moisture).   I paid $50 for
a 21 x 37 inch panel and picked it up in 3 days.

This panel is really easy to clean.   It is heavy enough to force a good air
seal yet light enough to handle.   I added a wood cleat across the bottom
end to prevent it slipping off when I move the "wheelbarrow melter".    I
have used this melter for a lot of years and this is the best solution I
have arrived at.

I think the secret is to tell your glass dealer what you need and let him
tell you what to use.

Bob Fanning
Huntsville, AL USA

::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
-- Visit www.honeybeeworld.com/BEE-L for rules, FAQ and  other info ---
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::