Posted by darrylvan on September 28, 2006, 2:36 am
Corrugated polycarbonate might be good for a thermosiphon but how about
a standard box type active collector?
Lexan at my local home depot is in the range of $00+ for an
appropriately sized sheet.
Posted by SJC on September 28, 2006, 3:09 am
You might look at greenhouse supply for multiwall polycarbonate.
I have seen prices under $0 for a 4' x 8' sheet.
Posted by Solar Flare on September 28, 2006, 3:28 am
Home Hardware = 4 x 12' sheet of double walled polycarbonate for $40
The bug proof edging tape is $3 per roll
The joining strip is expensive also....forget the price
The end caps are expensive also...forget the price
$ per sq foot?....LOL
Posted by SJC on September 28, 2006, 3:46 am
4' x 8' multiwall for $9.57
4' x 12' mutiwall for $4.35
Posted by Solar Flare on September 28, 2006, 11:21 pm
Now you started with $.50 pef sq ft for the glazing. Have it shipped
and keep going.
3/8" copper tubing is typically $-$ per lineal foot.