Portable Safe Heat    About Us From Concept to Reality During the mid-eighties a simple mid west mechanic, Verlyn Hybertson, designed a heater for industrial use that could generate high degrees of heat, without a flame. He acquired the patent for the idea in 1987 and started manufacturing the heater in 1988, also incorporating Therm Dynamics Inc. in May of that year. The plant is currently located in Tea, South Dakota, just outside of Sioux Falls. After years of fine tuning this product with his son's, we have developed a heater that generates high degree of FLAMELESS, DRY, AND UNCONTAMINATED HEAT. The patented technology uses diesel power to agitate hydraulic oil in a flameless, sparkless, low-pressure environment. The oil is cooled and circulated, not burned, providing a clean pollution free discharge to the target environment. A direct drive from the diesel engine powers both the patented THERM DYNAMICS unit and the integrated fan to dissipate the heat from the Model 900DR and 600DR heat exchanger. Heat output is controlled by simple settings on the diesel engine throttle, allowing selection of 50K BTU to the full 1 million+BTU of heat on the 900DR. The unit incorporates all controls necessary to ensure safe operation and equipment protection. THERM DYNAMICS is providing the safest, most reliable, user friendly and self-contained, contaminate free, portable heat on the market today. The patented heat generating units have a sealed, stationary housing enclosing a single piece-rotating disc. The heater system is a closed loop. Hydraulic fluid is heated by disc agitation and transported to the unit heat exchanger where heat transfer occurs. As the heated fluid is cooled, it is transported to an expansion tank where it is available for re-use and the process is repeated. In order to maximize the efficiency of the Model 600DR and 900DR the diesel exhaust is routed through the heat exchanger compartment prior to being discharged well away from the work area. Clean heated air can be delivered directly from the unit’s discharge or through attachable flex ducting. Given the flameless and sparkless nature of the THERM DYNAMICS technology, the unit is ideal for construction sites, fuel farms, mines, airports and anywhere else fire is of concern. The heat generator and engine are enclosed in a locked cabinet complete with floor and removable doors. The unit is mounted on a single, 6,000 lb. Torsion bar axle with 15" wheels and tires. Due to the few moving parts, the potential for failure is minimal. The Model 600DR and 900DR is designed to stand alone for trouble free operation. Therm Dynamics Mfg. Inc. -- 46982 Mindy Street -- Tea, SD 57064 Home Office: 605-498-1050