Chromalox "Microtherm" recirculation heater.  Model CMX-250-18.  18 KW electric heater rated for up to 250 degrees F @ 30 psi minimum pressure, micro processor based digital temperature controller with touch sensitive controls, set point and temperature read out, from and to process pressure gauges, low water, pump and temperature overload indicator lights, incoloy shielded heater, cooling via direct injection (1. 250" female NPT connections) in open loop or through closed loop heat exchanger, pressure relief @ 125 psi, . 75 horsepower circulation pump, pressure sensing switch, automatic system air purging, 3. 8 sq/ft heat exchanger (closed loop cooling), wired for 480 volt/3 phase service/23. 1 amps, cabinet enclosure with removeable top and side panels, mounted on casters. Formerly used in branded food manufacturing.