Unregulated 2" NPT Screw Plug Immersion Heaters (No Thermostat Temperature Control)

If in doubt about what is required or best-suited for your application, please contact us at 1-724-872-5007 or customer.service@thermcoil.com.

 Unregulated (No thermostat):

Materials Available:

If in doubt about which materials are required for your application, please contact us at 1-724-872-5007 or customer.service@thermcoil.com.

  • INCOLOY® Sheath with Brass Screw Plug (Silver Brazed): Our A models with 45-55 watt density (W/IN.²) are for use in clean water, some marine environments including brackish water and seawater with moderate to low currents, and select mildly corrosive liquids (absolutely no hydroxides, cyanides, or oxidizing acids).
  • INCOLOY® Sheath with Stainless Steel Screw Plug (Nickel Brazed or Welded): Our A-SSN models with 45-55 watt density (W/IN.²) are suitable for clean water and corrosive liquids, such as process water with less than 6% alkaline or acid content; up to 2% caustic solutions.  These models are also suitable for demineralized or deionized water.
  • Copper Sheath with Brass Screw Plug (Silver Brazed): Our C models with 39-66 watt density (W/IN.²) are for use in clean water.
  • Steel Sheath with Steel Screw Plug (Nickel Brazed or Welded): Our S models with 20-23 watt density (W/IN.²) are for use in oils.

        Enclosure:

        • NEMA 1, General Purpose Enclosure: the default enclosure type.

                    ●  Weather-Resistant Enclosures
                    ●  Explosion-Resistant Enclosures (Also Dust & Weather-Resistant)