Since 1990 Soil-Therm has been specializing in the manufacture of custom environmental and emissions control equipment for a wide range of applications. Recent advancements in SOIL-THERM's patented Jet-THERM technology include IN-SITU THERMAL REMEDIATION (ISTR) heating systems for soil heating applications. Small 4" burners capable of heat output in excess of 300,000 btus/hr, 1800F , and pressures >15 psig have demonstrated faster and less expensive heating times for contaminated sites.