Commodity2005200620072008200920102011
Furnace burners for liquid fuel$2,146$7,062$43$46$337$99,879$4,490
Furnace burners other than those for liquid fuel, incl. combination burners ...$1,303$594$2,586$10,822$2,737$14,680$17,045
Mechanical stokers (incl. their mech. grates), mech. ash dischargers & sim. ... $344 $1,511 $22,438 
Parts of the furnace burners, mech. stokers & mech. ash dischargers & sim. ...$14,444$4,078$4,708$2,562$53,261$256,129$81,925
Total$17,893$12,078$7,337$14,941$56,335$393,126$103,460