1 Technology from Sweden 2 Various fuel are applicable 3 easy maintenance and easy installation' 4Full automatic control waste oil boilerModel No.: WOB-10 Features:1.Various fuels are applicable, e.g. used engine oil, used vegetable oil, used crankcase oils, used Glycerin, used Hydraulic oil, used synthetic oils, waste machine shop cutting oil, waste mineral spirits solvent, waste grades #1, #3, ...