Commodity20072008200920102011
Furnace burners for liquid fuel$190 $25  
Furnace burners other than those for liquid fuel, incl. combination burners ... $800$2,000$242 
Mechanical stokers (incl. their mech. grates), mech. ash dischargers & sim. ...    $299
Parts of the furnace burners, mech. stokers & mech. ash dischargers & sim. ...$65$7,000$281 $3,713
Total$255$7,800$2,306$242$4,012