The clarke little devil ss 2 is a compact stainless steel propane fired space heater ideal for small workshops sheds garages and other working areas it39s very lightweight and features a handy top mounted handle so it can be carried around easily and used wherever it39s required despite it39s small size and weight the little devil ss 2 produces an excellent 35 000 btu per hour10kw heat output easily enough to warm small areas up to a comfortable temperature quickly and efficient