All Hydraulic Heaters listed in this online catalog are shown with 60°-250° F (16°-121° C) SPST Integral Thermostats. However, all heaters are available without Thermostats or with Thermostats having other temperature ranges. SPDT, DPST and Indicating Thermostats are also offered as well as thermal cutouts and thermocouples.

All heaters ordered without thermostats and/or thermocouples are provided without thermowells and with low profile terminal enclosures unless otherwise requested. If a thermowell is desired without an integral thermostat, the thermowell material, thermostat bulb diameter and length, and type of terminal enclosure required (See Fig. 11-1 on page 11) must be specified when ordering a heater. Please consult the factory for further information.