The Smart Ash Cyclonic barrel burner (less drum) is a innovative portable incinerator that disposes many products to include waste oil. Simply load a 55 gl open-head roll top steel drum, light the load, and clamp on the lid. A whirlwind of fire and intense hear is created inside the drum, burning refuse without smoke or smell, Once combustion is complete, only 3% ash remains. The Smart Ash falls into the category of Cyclonic Barrel Burner covered under EPA Regulation 40 CFR Part 60 (Standards of Performance) exempted under section 60.2555. Always contact your regulatory authority before use.