Heatrex designs and manufactures heaters for thermal processing applications in the Environmental, Transportation, Food Service, Power Generation, and Metalworking Industries.
Their expertise is in producing Tubular & Finned Tubular Heaters, Duct Heaters, Flanged & Screw Plug Immersion
Heaters, Switchgear Space Heaters, Refrigeration Defrost Heaters, Bolt Heaters, Infrared Comfort Heaters, and Railroad Track Switch Defrost Heaters.

Waukee Engineeing Company offers a complete line of standard manual flo-meters that can be upgraded with the Waukee-Tronic and Valve-Tronic to provide complete closed-loop gas flow control. The state-of-the-art Nitrogen/Methanol Control System produces synthetic endothermic gas with a manual and automatic nitrogen purge safety feature. The complete line of flo-meters, compressors, mixing systems, and valves, are the Heat Treat Industry's answer to accurate gas flow control.