Inquiry (采购产品): Indirect air heater wood shavings drier I am designing a batch woodshavings drier and needs a indirect propane heater to be placed down stream from a centrifugal fan (21000 cfm) to heat the air in a duct of approx. 22" by 33" by 70F rise. **** Hidden Message ***** Gerrit Kruger 29010 Company: Coker Farms LLC E-mail: ghj.kruger@absamail.co.za **** Hidden Message ***** ghj.kruger@absamail.co.za