View Single Post
Old 07-13-11, 06:51 PM   #12
Xringer
Lex Parsimoniae
 
Xringer's Avatar
 
Join Date: Feb 2009
Location: Woburn, MA
Posts: 4,918
Thanks: 114
Thanked 250 Times in 230 Posts
Default BTUs?

What is it? 9 sq feet? How many BTUh will that be able to harvest?
How much water do you plan to heat?
How many degrees warmer, do you plan to increase your water temp?

IMHO, you need a much larger capture area.
Xringer is offline   Reply With Quote