Gas / Oil fired high velocity portable combusion system are used for Post Weld Heat Treatment, Refractory Dryouts and curing. The Oil / Gas high velocity burner systems provide from 5,00,000 kcal/hr up to 8,000,000 Kcal/hr ( 2000,000 Btu/hr to 32,000,000 Btu/hr ).The unit is designed for manual operation. Automatic control can also be provided.