A soil remediation unit that changes the use and purpose of certain commercially available aggregate mixing devices and or pug mills for removing unwanted contaminants from a quantity of contaminated soil aggregate or substrate which includes a canopy and a burner tube attached to the canopy. A late join frame replaces, and has the same size as, a traffic frame. The moment frame is secured to a foundation, which may include pilings extending downwardly into the ground. The driver circuit may be used in half-bridge or full-bridge drivers.