This burner can be used for furnace, refractory dry-outs and curing applications. It is also suitable for post weld heat treatment of large steel vessel and spherical tank on site. The vessel or tank is insulated externally, forming its own furnace and the burner provides a mean of firing into the vessel internally. The system employs a high pressure blower to enable " hot air" to be distributed into the heating chamber at high speed and thus creating a uniform balance of heat distribution throughout the entire chamber. Maximum burner output ratings: 6 - 8 million B.T.U./ Hr.