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Therm-Coil Mfg. will be closed July 4-8, 2024 to allow us to celebrate Independence Day with our families.
Therm-Coil Mfg. will be closed July 4-8, 2024 to allow us to celebrate Independence Day with our families.

1-1/4" NPT Screw Plug Immersion Heaters

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

Available Unregulated (No Thermostat) or Regulated (With Thermostat):

  • 60°-250°F Thermostat Control: This is the default thermostat temperature range if you choose a regulated heater.
  • Alternate Temperature Ranges Are Available (Contact Us!):

            ●  30°-110°F
            ●  200°-550°F

NOTE - Regulated Models Require A Magnetic Contactor (sold separately) Unless They Are Rated:

  • ≤240V And Single-Phase With An Amperage Rating Of 25 Amps Or Less.

    Materials Available:

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

    • INCOLOY® Sheath with Brass Screw Plug (Silver Brazed): Our AQ2 and EAQ2 models with 39-55 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 AQ2-SSN and EAQ2-SSN models with 39-55 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): OuCQ2 and ECQ2 models with 48-96 watt density (W/IN.²) are for use in clean water.
    • Steel Sheath with Steel Screw Plug (Nickel Brazed or Welded): Our SQ2 and ESQ2 models with 20-22 watt density (W/IN.²) are for use in lightweight oils.

          Enclosure:

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

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

           

          • EAQ2-3041 Model: 3000W @ 240V 1-Phase 15-3/4" Immersion Length Regulated Incoloy Sheath With Brass 1-1/4" NPT Screw Plug Immersion Elements

            Original price $ 0.00 - Original price $ 0.00
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            Therm Coil EAQ2-3041 Model Drawing Number: 355B-1002-026 Incoloy Sheath Elements With Brass Screw Plug: If in doubt about which materials are requi...

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          • EAQ2-3011 Model: 3000W @ 120V 1-Phase 15-1/2" Immersion Length Regulated Incoloy Sheath With Brass 1-1/4" NPT Screw Plug Immersion Elements

            Original price $ 0.00 - Original price $ 0.00
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            Therm Coil EAQ2-3011 Model Drawing Number: 355B-1002-020 Incoloy Sheath Elements With Brass Screw Plug: If in doubt about which materials are requi...

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          • EAQ2-2011 Model: 2000W @ 120V 1-Phase 10-7/8" Immersion Length Regulated Incoloy Sheath With Brass 1-1/4" NPT Screw Plug Immersion Elements

            Original price $ 0.00 - Original price $ 0.00
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            Therm Coil EAQ2-2011 Model Drawing Number: 355B-1002-011 Incoloy Sheath Elements With Brass Screw Plug: If in doubt about which materials are requi...

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            Original price $ 0.00 - Original price $ 0.00
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          • EAQ2-1541 Model: 1500W @ 240V 1-Phase 9" Immersion Length Regulated Incoloy Sheath With Brass 1-1/4" NPT Screw Plug Immersion Elements

            Original price $ 0.00 - Original price $ 0.00
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            Therm Coil EAQ2-1541 Model Drawing Number: 355B-1002-008 Incoloy Sheath Elements With Brass Screw Plug: If in doubt about which materials are req...

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            Original price $ 0.00 - Original price $ 0.00
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          • EAQ2-1521 Model: 1500W @ 208V 1-Phase 8-1/2" Immersion Length Regulated Incoloy Sheath With Brass 1-1/4" NPT Screw Plug Immersion Elements

            Original price $ 0.00 - Original price $ 0.00
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            Therm Coil EAQ2-1521 Model Drawing Number: 355B-1002-005 Incoloy Sheath Elements With Brass Screw Plug: If in doubt about which materials are req...

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            Original price $ 0.00 - Original price $ 0.00
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          • EAQ2-1511 Model: 1500W @ 120V 1-Phase 9" Immersion Length Regulated Incoloy Sheath With Brass 1-1/4" NPT Screw Plug Immersion Elements

            Original price $ 0.00 - Original price $ 0.00
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            Therm Coil EAQ2-1511 Model Drawing Number: 355B-1002-002 Incoloy Sheath Elements With Brass Screw Plug: If in doubt about which materials are req...

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            Original price $ 0.00 - Original price $ 0.00
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          • EAQ2-1041 Model: 1000W @ 240V 1-Phase 7-3/4" Immersion Length Regulated Incoloy Sheath With Brass 1-1/4" NPT Screw Plug Immersion Elements

            Original price $ 0.00 - Original price $ 0.00
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            Therm Coil EAQ2-1041 Model Drawing Number: 355B-1002-050 Incoloy Sheath Elements With Brass Screw Plug: If in doubt about which materials are req...

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            Original price $ 0.00 - Original price $ 0.00
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          • EAQ2-1011 Model: 1000W @ 120V 1-Phase 6-1/8" Immersion Length Regulated Incoloy Sheath With Brass 1-1/4" NPT Screw Plug Immersion Elements

            Original price $ 0.00 - Original price $ 0.00
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            Therm Coil EAQ2-1011 Model Drawing Number: 355B-1002-044 Incoloy Sheath Elements With Brass Screw Plug: If in doubt about which materials are requi...

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            Original price $ 0.00 - Original price $ 0.00
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          • CQ2-2041: Copper Element, 2kW, 240V 1-Phase, 1-1/4" NPT Brass Screw Plug Immersion Heater With NEMA 1 General Purpose Enclosure (Unregulated), 6" Immersion Length

            Original price $ 0.00 - Original price $ 0.00
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            Therm Coil Drawing No.: 353D-1001-008 Therm Coil Model No: CQ2-2041 Series General Information: Copper Sheath with Brass 1-1/4" NPT Screw Plug (...

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            Original price $ 0.00 - Original price $ 0.00
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          • CQ2-2021: Copper Element, 2kW, 208V 1-Phase, 1-1/4" NPT Brass Screw Plug Immersion Heater With NEMA 1 General Purpose Enclosure (Unregulated), 10" Immersion Length

            Original price $ 0.00 - Original price $ 0.00
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            Therm Coil Drawing No.: 353D-1001-005 Therm Coil Model No: CQ2-2021 Series General Information: Copper Sheath with Brass 1-1/4" NPT Screw Plug (...

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            Original price $ 0.00 - Original price $ 0.00
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          • CQ2-2011: Copper Element, 2kW, 120V 1-Phase, 1-1/4" NPT Brass Screw Plug Immersion Heater With NEMA 1 General Purpose Enclosure (Unregulated), 6" Immersion Length

            Original price $ 0.00 - Original price $ 0.00
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            Therm Coil Drawing No.: 353D-1001-002 Therm Coil Model No: CQ2-2011 Series General Information: Copper Sheath with Brass 1-1/4" NPT Screw Plug (...

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            Original price $ 0.00 - Original price $ 0.00
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          • CQ2-1541: Copper Element, 1.5kW, 240V 1-Phase, 1-1/4" NPT Brass Screw Plug Immersion Heater With NEMA 1 General Purpose Enclosure (Unregulated), 6" Immersion Length

            Original price $ 0.00 - Original price $ 0.00
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            Therm Coil Drawing No.: 353D-1001-007 Therm Coil Model No: CQ2-1541 Series General Information: Copper Sheath with Brass 1-1/4" NPT Screw Plug (...

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            Original price $ 0.00 - Original price $ 0.00
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          • CQ2-1041-7: Copper Element, 1kW, 240V 1-Phase, 1-1/4" NPT Brass Screw Plug Immersion Heater With NEMA 1 General Purpose Enclosure (Unregulated), 6-5/8" Immersion Length

            Original price $ 0.00 - Original price $ 0.00
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            Therm Coil Drawing No.: 353D-1001-017 Therm Coil Model No: CQ2-1041-7 Series General Information: Copper Sheath with Brass 1-1/4" NPT Screw Plug...

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            Original price $ 0.00 - Original price $ 0.00
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          • CQ2-1041: Copper Element, 1kW, 240V 1-Phase, 1-1/4" NPT Brass Screw Plug Immersion Heater With NEMA 1 General Purpose Enclosure (Unregulated), 6" Immersion Length

            Original price $ 0.00 - Original price $ 0.00
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            Therm Coil Drawing No.: 353D-1001-016 Therm Coil Model No: CQ2-1041 Series General Information: Copper Sheath with Brass 1-1/4" NPT Screw Plug (...

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            Original price $ 0.00 - Original price $ 0.00
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          • CQ2-1011-7: Copper Element, 1kW, 120V 1-Phase, 1-1/4" NPT Brass Screw Plug Immersion Heater With NEMA 1 General Purpose Enclosure (Unregulated), 7" Immersion Length

            Original price $ 0.00 - Original price $ 0.00
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            Therm Coil Drawing No.: 353D-1001-018 Therm Coil Model No: CQ2-1011-7 Series General Information: Copper Sheath with Brass 1-1/4" NPT Screw Plug...

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            Original price $ 0.00 - Original price $ 0.00
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          • CQ2-1011: Copper Element, 1kW, 120V 1-Phase, 1-1/4" NPT Brass Screw Plug Immersion Heater With NEMA 1 General Purpose Enclosure (Unregulated), 6" Immersion Length

            Original price $ 0.00 - Original price $ 0.00
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            Therm Coil Drawing No.: 353D-1001-015 Therm Coil Model No: CQ2-1011 Series General Information: Copper Sheath with Brass 1-1/4" NPT Screw Plug (...

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            Original price $ 0.00 - Original price $ 0.00
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          • AQ2-3041-SSN Model: 3000W @ 240V 14-3/4" Immersion Length Unregulated Incoloy Sheath With Stainless Steel 1-1/4" NPT Screw Plug Immersion Elements

            Original price $ 0.00 - Original price $ 0.00
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            Current price $ 0.00
            Call for Availability

            Therm Coil AQ2-3041-SSN Model Drawing Number: 355D-1211-009 Series General Information: INCOLOY® Sheath with Stainless Steel Screw Plug (Nickel B...

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            Original price $ 0.00 - Original price $ 0.00
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            Current price $ 0.00
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          • AQ2-3011-SSN Model: 3000W @ 120V 14-3/4" Immersion Length Unregulated Incoloy Sheath With Stainless Steel 1-1/4" NPT Screw Plug Immersion Elements

            Original price $ 0.00 - Original price $ 0.00
            Original price
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            Current price $ 0.00
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            Therm Coil AQ2-3011-SSN Model Drawing Number: 355D-1211-007 Series General Information: INCOLOY® Sheath with Stainless Steel Screw Plug (Nickel B...

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            Original price $ 0.00 - Original price $ 0.00
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            Current price $ 0.00
            Call for Availability
          • AQ2-2041-SSN Model: 2000W @ 240V 10" Immersion Length Unregulated Incoloy Sheath With Stainless Steel 1-1/4" NPT Screw Plug Immersion Elements

            Original price $ 0.00 - Original price $ 0.00
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            Current price $ 0.00
            Call for Availability

            Therm Coil AQ2-2041-SSN Model Drawing Number: 355D-1211-006 Series General Information: INCOLOY® Sheath with Stainless Steel Screw Plug (Nickel B...

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            Original price $ 0.00 - Original price $ 0.00
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            Current price $ 0.00
            Call for Availability
          • AQ2-2011-SSN Model: 2000W @ 120V 10" Immersion Length Unregulated Incoloy Sheath With Stainless Steel 1-1/4" NPT Screw Plug Immersion Elements

            Original price $ 0.00 - Original price $ 0.00
            Original price
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            Current price $ 0.00
            Call for Availability

            Therm Coil AQ2-2011-SSN Model Drawing Number: 355D-1211-004 Series General Information: INCOLOY® Sheath with Stainless Steel Screw Plug (Nickel B...

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            Original price $ 0.00 - Original price $ 0.00
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            Current price $ 0.00
            Call for Availability
          • AQ2-1541-SSN Model: 1500W @ 240V 9" Immersion Length Unregulated Incoloy Sheath With Stainless Steel 1-1/4" NPT Screw Plug Immersion Elements

            Original price $ 0.00 - Original price $ 0.00
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            Current price $ 0.00
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            Therm Coil AQ2-1541-SSN Model Drawing Number: 355D-1211-003 Series General Information: INCOLOY® Sheath with Stainless Steel Screw Plug (Nickel B...

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            Original price $ 0.00 - Original price $ 0.00
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          • AQ2-1541-L-SSN Model: 1500W @ 240V 14-3/4" Immersion Length Unregulated Incoloy Sheath With Stainless Steel 1-1/4" NPT Screw Plug Immersion Elements

            Original price $ 0.00 - Original price $ 0.00
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            Therm Coil AQ2-1541-L-SSN Model Drawing Number: 355D-1210-004 Series General Information: INCOLOY® Sheath with Stainless Steel Screw Plug (Nickel...

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            Original price $ 0.00 - Original price $ 0.00
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          • AQ2-1511-SSN Model: 1500W @ 120V 9" Immersion Length Unregulated Incoloy Sheath With Stainless Steel 1-1/4" NPT Screw Plug Immersion Elements

            Original price $ 0.00 - Original price $ 0.00
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            Therm Coil AQ2-1511-SSN Model Drawing Number: 355D-1211-001 Series General Information: INCOLOY® Sheath with Stainless Steel Screw Plug (Nickel B...

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            Original price $ 0.00 - Original price $ 0.00
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          • AQ2-1011-SSN Model: 1000W @ 120V 6-1/8" Immersion Length Unregulated Incoloy Sheath With Stainless Steel 1-1/4" NPT Screw Plug Immersion Elements

            Original price $ 0.00 - Original price $ 0.00
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            Therm Coil AQ2-1011-SSN Model Drawing Number: 355D-1211-010 Series General Information: INCOLOY® Sheath with Stainless Steel Screw Plug (Nickel B...

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            Original price $ 0.00 - Original price $ 0.00
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