Niklas:

Your info is regarding a forge and I would assume that the bellows for a furnace/hearth would be similar. Regarding a furance of hearth: either the bellows or piston bellows forcing air into the furnace is what constitutes a "blast furnace." Fine effort by all.

Kind Regards,

Raimey
rse

Last edited by ellenbr; 01/09/08 11:23 PM.