Yup, I do my messy damascus work with flux in this forge. Sides eventually get eaten, but can be repaired with furnace mortar. The bottom has space for a big ol’ flux clinker. Also, you’re not blasting your blade directly, and the forced air burner allows very fine atmospheric control from oxidizing to neutral & reducing. Finally, for blades, you can work in specific sections and reduce overall scale. I do my heat treating in my drum forge (same burner,) or in the salt tanks. It’s not very good for heat treating over about 7-8”.