04-04-2009, 03:44 PM
There is another system available - a convection type without the bulk of a tank above the panels - the panel is thicker and acts as it's own storage tank. I hope to install it with an on demand gas heater as a back-up.
http://www.thesolar.biz/Copper_Heart_Hot...eaters.htm
http://www.thesolar.biz/Copper_Heart_Hot...eaters.htm