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Tubular Radiant Heaters – Watt Densities for Typical Applications

8 watts/in2 (1.3 watts/cm2)

Typical Applications: Fuel Oils (Bunker C and Number 6

Recommended Materials

  • Screw Plug:Steel
  • Flange: 150-lb Steel
  • Tank:Steel
  • Elements: Steel Sheath
  • Housing: NEMA 1 Terminal Housing

16 watts/in2 (2.5 watts/cm2)

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

Recommended Materials

  • Screw Plug: 304 Stainless Steel
  • Flange: 150-lb Steel
  • Tank: Steel
  • Elements: Incoloy® 800 Sheath
  • Housing: NEMA 1 Terminal Housing

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

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

Recommended Materials

  • Screw Plug:Steel
  • Flange: 150-lb Steel
  • Tank: Steel
  • Elements: Steel Sheath
  • Housing: NEMA 1 Terminal Housing

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

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

Recommended Materials

  • Screw Plug: 304 Stainless Steel
  • Flange: 150-lb Steel
  • Tank: Steel
  • Elements: Incoloy® 800 Sheath
  • Housing: NEMA 1 Terminal Housing

48 watts/in2 (7.5 watts/cm2)

Typical Applications: Process Water

Recommended Materials

  • Screw Plug: 304 Stainless Steel
  • Flange: 150-lb Steel
  • Tank: Steel
  • Elements: Incoloy® 800 Sheath
  • Housing: NEMA 1 Terminal Housing

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

Typical Applications: Clean Water

Recommended Materials

  • Screw Plug: Brass
  • Flange: 150-lb Steel
  • Tank: Steel
  • Elements: Copper Sheath
  • Housing: NEMA 1 Terminal Housing

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

Typical Applications: Deionized Water ● Demineralized Water

Recommended Materials

  • Screw Plug: 316 Stainless Steel
  • Flange: 150-lb 316 Stainless Steel
  • Tank: 316 Stainless Steel Tank
  • Elements: 316 Stainless Steel Sheath
  • Housing: NEMA 1 Terminal Housing