Tempco Watt Density for Typical Applications

8 watts/in2 (1.3 watts/cm2)

Typical Applications: Fuel Oils (Bunker C and Number 6)

Recommended Materials

  • Screw Plug: Steel
  • Elements: Steel
  • Housing: NEMA 1

3-Phase only

15 watts/in2 (2.3 watts/cm2)

Typical Applications: Medium Weight Oils ● Heat Transfer Oils

Recommended Materials

  • Screw Plug: Steel
  • Elements: Steel
  • Housing: NEMA 1

3-Phase and 3-Phase convertible to 1-Phase

16 watts/in2 (2.5 watts/cm2)

Typical Applications: Medium Weight Oils ● Heat Transfer Oils ● Liquid Paraffin

Recommended Materials

  • Screw Plug: 304 Stainless Steel
  • Elements: Incoloy® 800
  • Housing: NEMA 1

3-Phase only

23 watts/in2 (3.6 watts/cm2) (B)

Typical Applications: Forced Air & Gases ● Caustic Solutions ● Degreasing Solutions

Recommended Materials

  • Screw Plug: 304 Stainless Steel
  • Elements: Incoloy® 800
  • Housing: NEMA 1

Dual-Voltage heaters are 1-Phase and are wired for the higher voltage unless otherwise specified.
3-Phase and 3-Phase convertible to 1-Phase

23 watts/in2 (3.6 watts/cm2) (A)

Typical Applications: Lightweight Oils ● Degreasing Solutions ● Heat Transfer Oils

Recommended Materials

  • Screw Plug: Steel
  • Elements: Steel
  • Housing: NEMA 1

Dual-Voltage heaters are 1-Phase and are wired for the higher voltage unless otherwise specified.
3-Phase and 3-Phase convertible to 1-Phase

48 watts/in2 (7.5 watts/cm2)

Typical Applications: Process Water

Recommended Materials

  • Screw Plug: 304 Stainless Steel
  • Elements: Incoloy® 800
  • Housing: NEMA 1

Dual-Voltage heaters are 1-Phase and are wired for the higher voltage unless otherwise specified.
3-Phase and 3-Phase convertible to 1-Phase

60 watts/in2 (9.3 watts/cm2) (A)

Typical Applications: Clean Water

Recommended Materials

  • Screw Plug: Brass
  • Elements: Copper
  • Housing: NEMA 1

Dual-Voltage heaters are 1-Phase and are wired for the higher voltage unless otherwise specified.
3-Phase and 3-Phase convertible to 1-Phase

60 watts/in2 (9.3 watts/cm2) (B)

Typical Applications: Deionized Water ● Demineralized Water

Recommended Materials

  • Screw Plug: 316 Stainless Steel
  • Elements: 316 Stainless Steel
  • Housing: NEMA 1

3-Phase and 3-Phase convertible to 1-Phase