Commodity2005200620072008200920102011
Furnace burners for liquid fuel$1,544$3,183$58,059$25,810 $7,483 
Furnace burners other than those for liquid fuel, incl. combination burners ...$36,849$13,805$6,926$16,336$68,971$132,996$8,017
Mechanical stokers (incl. their mech. grates), mech. ash dischargers & sim. ...$529$577  $30$2,179$6,386
Parts of the furnace burners, mech. stokers & mech. ash dischargers & sim. ...$3,975$5,081$6,599 $19,497$21,340$7,097
Total$42,897$22,646$71,584$42,146$88,498$163,998$21,500