(Solar heater) Solar water heating (SWH) systems are a mature renewable energy technology which have been accepted in most countries for many years. SWH has been widely used in Israel, Australia, Japan, Austria and China.
(solar heater) a heater that makes direct use of solar energy
a small light typewriter; usually with a case in which it can be carried
A version of something, such as a small lightweight television or computer, that can be easily carried
A small transportable building used as a classroom
easily or conveniently transported; "a portable television set"
of a motor designed to be attached to the outside of a boat's hull; "a portable outboard motor"
One Earth 1
One Earth makes this portable solar-powered heater, cooker and electricity generator for nomads who have to pack light.