Solar Energy Hot Water System, 27 Tube, 170 liter

Complete Solar Water Heater System:  27 Tube, Heat Pipes, 178 liter Tank

27 tube solar water heater all-glass evacuated tubular collector design with sealed all glass heat pipes. 170 liter stainless steel inner tank, aluminum stand, air vent, water inlet and outlet fittings, tank cover, foot cushions, end caps are all included. Vacuum tubes can never freeze, since they contain no water. Optional auxiliary electric heater and controller can keep water temperature constant.

Install the system yourself in hours!  See installation manual download here: http://www.freefuelforever.com/gravity system installation manual.pdf

Manual filling & draining or optional auto-filler.

-Low pressure system, vented to atmosphere, gravity drain.

-Similar appearance to pressure model without reflector.

-Gravity drain most common in world

Package contains a complete solar water heater: · Stand alone system, no additional parts

· Economic system for typical house

· No electricity or pumps required.

· Assemble yourself in 3 hours

· Optional electronic controller-heater

· Graded Al-N/Al selective coating, high energy absorption and low heat transfer losses

· highly evacuated with pressure ≤5×10-2 Pa in the space between outer and inner covers, so no heat loss

· All Glass Heat pipes transfer heat energy in one direction only:  see how heat pipes work here: http://www.freefuelforever.com/pages/gravity system how it works.htm

· High transparency with boron silicon glass, high resistance to cold water

See all the specifications here: http://www.freefuelforever.com/pages/gravity system specifications.htm