Filter by
Screw Terminal Thread Size
DFARS Compliance
Certification
About Choosing a Heater
More
Finned Tubular Heaters for Duct, Ovens, and Dryers
Straight
U-Bend
M-Bend
Straight
U-Bend
M-Bend
These tubular heaters minimize the risk of sparks and fire from combustible particles in the flow stream, making them a safer choice than open coil heaters. Finned for increased surface area, they quickly dissipate heat in air and inert gas heating systems such as duct heaters and convection ovens. Their sheath, fins, and fittings are made of stainless steel, which resists heat and corrosion better than steel. These heaters require a temperature switch or control (sold separately) to regulate output.
Heaters with end fittings welded on one end have one fitting permanently welded for a secure connection, while the other fitting is loose to create room for tube expansion during heating. The extra space helps prevent damage.
For technical drawings and 3-D models, click on a part number.
Fin | Heating Element | Screw Terminal | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wattage, W | Watt Density, W/sq. in. | Current, A  | Overall Lg. | Maximum Heat Output, °F | Lg. | Dia. | Material | Lg. | Material | Thread Size | Lg. | Each | |
120V AC, Single Phase | |||||||||||||
Straight—Welded on One End | |||||||||||||
| 1,000 | 60 | 8.33 | 23 1/2" | 1200° | 16 1/2" | 15/16" | Stainless Steel | 20" | 304 Stainless Steel | 8-32 | 1 1/8" | 0000000 | 0000000 |
U-Bend—Welded on Both Ends | |||||||||||||
| 1,000 | 60 | 8.33 | 12" | 1200° | 8 3/4" | 15/16" | Stainless Steel | 10 1/4" | 304 Stainless Steel | 8-32 | 1 1/8" | 0000000 | 000000 |
M-Bend—Welded on Both Ends | |||||||||||||
| 1,500 | 60 | 12.5 | 9 1/2" | 1200° | 6 1/4" | 15/16" | Stainless Steel | 7 3/4" | 304 Stainless Steel | 8-32 | 1 1/8" | 0000000 | 000000 |
240V AC, Single Phase | |||||||||||||
Straight—Welded on One End | |||||||||||||
| 2,000 | 80 | 8.33 | 32 1/4" | 1200° | 25" | 1 3/16" | Stainless Steel | 28 1/4" | 304 Stainless Steel | 10-32 | 1 1/8" | 0000000 | 000000 |
M-Bend—Welded on Both Ends | |||||||||||||
| 3,000 | 80 | 12.5 | 12 1/4" | 1200° | 9" | 1 3/16" | Stainless Steel | 10 1/4" | 304 Stainless Steel | 10-32 | 1 1/8" | 0000000 | 000000 |
| 4,000 | 80 | 16.67 | 15 1/4" | 1200° | 12" | 1 3/16" | Stainless Steel | 13 1/4" | 304 Stainless Steel | 10-32 | 1 1/8" | 0000000 | 000000 |
480V AC, Single Phase | |||||||||||||
U-Bend—Welded on Both Ends | |||||||||||||
| 1,000 | 80 | 2.08 | 9 3/4" | 1200° | 6 1/2" | 1 3/16" | Stainless Steel | 7 3/4" | 304 Stainless Steel | 10-32 | 1 1/8" | 0000000 | 000000 |
| 2,000 | 80 | 4.17 | 15 3/4" | 1200° | 12 1/2" | 1 3/16" | Stainless Steel | 13 3/4" | 304 Stainless Steel | 10-32 | 1 1/8" | 0000000 | 000000 |
| 3,000 | 80 | 6.25 | 22 1/4" | 1200° | 19" | 1 3/16" | Stainless Steel | 20 1/4" | 304 Stainless Steel | 10-32 | 1 1/8" | 0000000 | 000000 |
| 4,000 | 80 | 8.33 | 28 1/4" | 1200° | 25" | 1 3/16" | Stainless Steel | 26 1/4" | 304 Stainless Steel | 10-32 | 1 1/8" | 0000000 | 000000 |
M-Bend—Welded on Both Ends | |||||||||||||
| 3,000 | 80 | 6.25 | 12 1/4" | 1200° | 9" | 1 3/16" | Stainless Steel | 10 1/4" | 304 Stainless Steel | 10-32 | 1 1/8" | 0000000 | 000000 |
| 4,000 | 80 | 8.33 | 15 1/4" | 1200° | 12" | 1 3/16" | Stainless Steel | 13 1/4" | 304 Stainless Steel | 10-32 | 1 1/8" | 0000000 | 000000 |
| 6,000 | 80 | 12.5 | 21 1/4" | 1200° | 18" | 1 3/16" | Stainless Steel | 19 1/4" | 304 Stainless Steel | 10-32 | 1 1/8" | 0000000 | 000000 |
| 7,000 | 80 | 14.58 | 24 1/4" | 1200° | 21" | 1 3/16" | Stainless Steel | 22 1/4" | 304 Stainless Steel | 10-32 | 1 1/8" | 0000000 | 000000 |
Finned Strip Heaters for Duct, Ovens, and Dryers
With Split Screw Terminals
With Inline Screw Terminals
With Offset Screw Terminals
These heaters have a large surface area to quickly dissipate heat in air and inert gas heating systems used in ducts, ovens, and dryers. They have a 304 stainless steel heating element that resists corrosion and moisture. All heaters require a temperature switch or controller (sold separately) to regulate heat output.
For technical drawings and 3-D models, click on a part number.
Fin | Heating Element | Screw Terminal | Mount | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wattage, W | Watt Density, W/sq. in. | Current, A | O'all Lg. | Max. Heat Output, °F | Lg. | Wd. | Ht. | Material | Lg. | Material | Thread Size | Ht. | Fasteners Included | Hole Ctr.-to-Ctr. | Each | |
120V AC, Single Phase | ||||||||||||||||
With Split Screw Terminals | ||||||||||||||||
| 350 | 18 | 2.9 | 10 1/2" | 1200° | 5 3/4" | 2" | 1 3/8" | Nickel-Plated Steel | 5 3/4" | 304 Stainless Steel | 10-32 | 5/8" | No | 9 1/2" | 00000000 | 000000 |
| 500 | 34 | 4.2 | 10 1/2" | 1200° | 5 3/4" | 2" | 1 3/8" | Nickel-Plated Steel | 5 3/4" | 304 Stainless Steel | 10-32 | 5/8" | No | 9 1/2" | 00000000 | 00000 |
| 725 | 45 | 6 | 10 1/2" | 1200° | 5 3/4" | 2" | 1 3/8" | Nickel-Plated Steel | 5 3/4" | 304 Stainless Steel | 10-32 | 5/8" | No | 9 1/2" | 00000000 | 00000 |
| 750 | 28 | 6.3 | 14" | 1200° | 9 1/4" | 2" | 1 3/8" | Nickel-Plated Steel | 9 1/4" | 304 Stainless Steel | 10-32 | 5/8" | No | 13" | 00000000 | 00000 |
| 900 | 40 | 7.5 | 12" | 1200° | 7 1/4" | 2" | 1 3/8" | Nickel-Plated Steel | 7 1/4" | 304 Stainless Steel | 10-32 | 5/8" | No | 11" | 00000000 | 00000 |
| 1,100 | 37 | 9.2 | 14" | 1200° | 9 1/4" | 2" | 1 3/8" | Nickel-Plated Steel | 9 1/4" | 304 Stainless Steel | 10-32 | 5/8" | No | 13" | 00000000 | 00000 |
| 1,250 | 37 | 10.4 | 15 1/4" | 1200° | 10 1/2" | 2" | 1 3/8" | Nickel-Plated Steel | 10 1/2" | 304 Stainless Steel | 10-32 | 5/8" | No | 14 1/4" | 00000000 | 00000 |
| 1,550 | 38 | 12.9 | 17 7/8" | 1200° | 13 1/8" | 2" | 1 3/8" | Nickel-Plated Steel | 13 1/8" | 304 Stainless Steel | 10-32 | 5/8" | No | 16 7/8" | 00000000 | 000000 |
| 1,700 | 34 | 14.2 | 26 3/4" | 1200° | 14 3/4" | 2" | 1 3/8" | Nickel-Plated Steel | 22" | 304 Stainless Steel | 10-32 | 5/8" | No | 18 1/2" | 00000000 | 000000 |
| 1,900 | 36 | 15.8 | 21" | 1200° | 16 1/4" | 2" | 1 3/8" | Nickel-Plated Steel | 16 1/4" | 304 Stainless Steel | 10-32 | 5/8" | No | 20" | 00000000 | 000000 |
With Inline Screw Terminals | ||||||||||||||||
| 350 | 18 | 2.9 | 10 1/2" | 1200° | 6 1/2" | 2" | 1 3/8" | Nickel-Plated Steel | 6 1/2" | 304 Stainless Steel | 10-32 | 5/8" | No | 9 1/2" | 00000000 | 00000 |
| 500 | 21 | 4.2 | 10 1/2" | 1200° | 6 1/2" | 2" | 1 3/8" | Nickel-Plated Steel | 6 1/2" | 304 Stainless Steel | 10-32 | 5/8" | No | 9 1/2" | 0000000 | 00000 |
| 725 | 31 | 6 | 10 1/2" | 1200° | 6 1/2" | 2" | 1 3/8" | Nickel-Plated Steel | 6 1/2" | 304 Stainless Steel | 10-32 | 5/8" | No | 9 1/2" | 00000000 | 00000 |
| 750 | 21 | 6.3 | 14" | 1200° | 10" | 2" | 1 3/8" | Nickel-Plated Steel | 10" | 304 Stainless Steel | 10-32 | 5/8" | No | 13" | 00000000 | 00000 |
| 900 | 31 | 7.5 | 12" | 1200° | 8" | 2" | 1 3/8" | Nickel-Plated Steel | 8" | 304 Stainless Steel | 10-32 | 5/8" | No | 11" | 0000000 | 00000 |
| 1,100 | 31 | 9.2 | 14" | 1200° | 10" | 2" | 1 3/8" | Nickel-Plated Steel | 10" | 304 Stainless Steel | 10-32 | 5/8" | No | 13" | 0000000 | 00000 |
| 1,250 | 31 | 10.4 | 15 1/4" | 1200° | 11 1/4" | 2" | 1 3/8" | Nickel-Plated Steel | 11 1/4" | 304 Stainless Steel | 10-32 | 5/8" | No | 14 1/4" | 0000000 | 00000 |
| 1,550 | 31 | 12.9 | 17 7/8" | 1200° | 13 7/8" | 2" | 1 3/8" | Nickel-Plated Steel | 13 7/8" | 304 Stainless Steel | 10-32 | 5/8" | No | 16 7/8" | 0000000 | 000000 |
| 1,700 | 31 | 14.2 | 19 1/2" | 1200° | 15 1/2" | 2" | 1 3/8" | Nickel-Plated Steel | 15 1/2" | 304 Stainless Steel | 10-32 | 5/8" | No | 18 1/2" | 0000000 | 000000 |
| 1,900 | 31 | 15.8 | 21" | 1200° | 17" | 2" | 1 3/8" | Nickel-Plated Steel | 17" | 304 Stainless Steel | 10-32 | 5/8" | No | 20" | 0000000 | 000000 |
With Offset Screw Terminals | ||||||||||||||||
| 350 | 18 | 2.9 | 10 1/2" | 1200° | 5 3/4" | 2" | 1 3/8" | Nickel-Plated Steel | 5 3/4" | 304 Stainless Steel | 10-32 | 5/8" | No | 9 1/2" | 00000000 | 00000 |
| 500 | 24 | 4.2 | 10 1/2" | 1200° | 5 3/4" | 2" | 1 3/8" | Nickel-Plated Steel | 5 3/4" | 304 Stainless Steel | 10-32 | 5/8" | No | 9 1/2" | 00000000 | 00000 |
| 725 | 35 | 6 | 10 1/2" | 1200° | 5 3/4" | 2" | 1 3/8" | Nickel-Plated Steel | 5 3/4" | 304 Stainless Steel | 10-32 | 5/8" | No | 9 1/2" | 00000000 | 00000 |
| 750 | 23 | 6.3 | 14" | 1200° | 9 1/4" | 2" | 1 3/8" | Nickel-Plated Steel | 9 1/4" | 304 Stainless Steel | 10-32 | 5/8" | No | 13" | 00000000 | 00000 |
| 900 | 34 | 7.5 | 12" | 1200° | 7 1/4" | 2" | 1 3/8" | Nickel-Plated Steel | 7 1/4" | 304 Stainless Steel | 10-32 | 5/8" | No | 11" | 00000000 | 00000 |
| 1,100 | 33 | 9.2 | 14" | 1200° | 9 1/4" | 2" | 1 3/8" | Nickel-Plated Steel | 9 1/4" | 304 Stainless Steel | 10-32 | 5/8" | No | 13" | 00000000 | 00000 |
| 1,250 | 33 | 10.4 | 15 1/4" | 1200° | 10 1/2" | 2" | 1 3/8" | Nickel-Plated Steel | 10 1/2" | 304 Stainless Steel | 10-32 | 5/8" | No | 14 1/4" | 00000000 | 00000 |
| 1,550 | 33 | 12.9 | 17 7/8" | 1200° | 13 1/8" | 2" | 1 3/8" | Nickel-Plated Steel | 13 1/8" | 304 Stainless Steel | 10-32 | 5/8" | No | 16 7/8" | 00000000 | 000000 |
| 1,700 | 31 | 14.2 | 19 1/2" | 1200° | 14 3/4" | 2" | 1 3/8" | Nickel-Plated Steel | 14 3/4" | 304 Stainless Steel | 10-32 | 5/8" | No | 18 1/2" | 00000000 | 000000 |
| 1,900 | 33 | 15.8 | 21" | 1200° | 16 1/4" | 2" | 1 3/8" | Nickel-Plated Steel | 16 1/4" | 304 Stainless Steel | 10-32 | 5/8" | No | 20" | 00000000 | 000000 |
240V AC, Single Phase | ||||||||||||||||
With Split Screw Terminals | ||||||||||||||||
| 500 | 25 | 2.1 | 10 1/2" | 1200° | 5 3/4" | 2" | 1 3/8" | Nickel-Plated Steel | 5 3/4" | 304 Stainless Steel | 10-32 | 5/8" | No | 9 1/2" | 00000000 | 00000 |
| 725 | 45 | 3 | 10 1/2" | 1200° | 5 3/4" | 2" | 1 3/8" | Nickel-Plated Steel | 5 3/4" | 304 Stainless Steel | 10-32 | 5/8" | No | 9 1/2" | 00000000 | 00000 |
| 750 | 28 | 3.1 | 14" | 1200° | 9 1/4" | 2" | 1 3/8" | Nickel-Plated Steel | 9 1/4" | 304 Stainless Steel | 10-32 | 5/8" | No | 13" | 00000000 | 00000 |
| 900 | 40 | 3.8 | 12" | 1200° | 7 1/4" | 2" | 1 3/8" | Nickel-Plated Steel | 7 1/4" | 304 Stainless Steel | 10-32 | 5/8" | No | 11" | 00000000 | 00000 |
| 1,100 | 37 | 4.6 | 14" | 1200° | 9 1/4" | 2" | 1 3/8" | Nickel-Plated Steel | 9 1/4" | 304 Stainless Steel | 10-32 | 5/8" | No | 13" | 00000000 | 00000 |
| 1,250 | 37 | 5.2 | 15 1/4" | 1200° | 10 1/2" | 2" | 1 3/8" | Nickel-Plated Steel | 10 1/2" | 304 Stainless Steel | 10-32 | 5/8" | No | 14 1/4" | 00000000 | 00000 |
| 1,550 | 38 | 6.5 | 17 7/8" | 1200° | 13 1/8" | 2" | 1 3/8" | Nickel-Plated Steel | 13 1/8" | 304 Stainless Steel | 10-32 | 5/8" | No | 16 7/8" | 00000000 | 000000 |
| 1,700 | 36 | 7.1 | 19 1/2" | 1200° | 14 3/4" | 2" | 1 3/8" | Nickel-Plated Steel | 14 3/4" | 304 Stainless Steel | 10-32 | 5/8" | No | 18 1/2" | 00000000 | 000000 |
| 1,900 | 36 | 7.9 | 21" | 1200° | 16 1/4" | 2" | 1 3/8" | Nickel-Plated Steel | 16 1/4" | 304 Stainless Steel | 10-32 | 5/8" | No | 20" | 00000000 | 000000 |
| 2,200 | 30 | 9.2 | 23 3/4" | 1200° | 19" | 2" | 1 3/8" | Nickel-Plated Steel | 19" | 304 Stainless Steel | 10-32 | 5/8" | No | 22 3/4" | 00000000 | 000000 |
| 2,400 | 35 | 10 | 25 1/2" | 1200° | 20 3/4" | 2" | 1 3/8" | Nickel-Plated Steel | 20 3/4" | 304 Stainless Steel | 10-32 | 5/8" | No | 24 1/2" | 00000000 | 000000 |
| 2,500 | 34 | 10.4 | 26 3/4" | 1200° | 22" | 2" | 1 3/8" | Nickel-Plated Steel | 22" | 304 Stainless Steel | 10-32 | 5/8" | No | 25 3/4" | 00000000 | 000000 |
| 2,800 | 29 | 11.7 | 30 1/2" | 1200° | 25 3/4" | 2" | 1 3/8" | Nickel-Plated Steel | 25 3/4" | 304 Stainless Steel | 10-32 | 5/8" | No | 29 1/2" | 00000000 | 000000 |
| 3,150 | 32 | 13.1 | 33 1/2" | 1200° | 28 3/4" | 2" | 1 3/8" | Nickel-Plated Steel | 28 3/4" | 304 Stainless Steel | 10-32 | 5/8" | No | 32 1/2" | 00000000 | 000000 |
| 3,450 | 33 | 14.4 | 35 7/8" | 1200° | 31 1/8" | 2" | 1 3/8" | Nickel-Plated Steel | 31 1/8" | 304 Stainless Steel | 10-32 | 5/8" | No | 34 7/8" | 00000000 | 000000 |
| 4,150 | 31 | 17.3 | 42 1/2" | 1200° | 37 3/4" | 2" | 1 3/8" | Nickel-Plated Steel | 37 3/4" | 304 Stainless Steel | 10-32 | 5/8" | No | 41 1/2" | 00000000 | 000000 |
With Inline Screw Terminals | ||||||||||||||||
| 500 | 21 | 2.1 | 10 1/2" | 1200° | 6 1/2" | 2" | 1 3/8" | Nickel-Plated Steel | 6 1/2" | 304 Stainless Steel | 10-32 | 5/8" | No | 9 1/2" | 0000000 | 00000 |
| 725 | 31 | 3 | 10 1/2" | 1200° | 6 1/2" | 2" | 1 3/8" | Nickel-Plated Steel | 6 1/2" | 304 Stainless Steel | 10-32 | 5/8" | No | 9 1/2" | 00000000 | 00000 |
| 750 | 21 | 3.1 | 14" | 1200° | 10" | 2" | 1 3/8" | Nickel-Plated Steel | 10" | 304 Stainless Steel | 10-32 | 5/8" | No | 13" | 00000000 | 00000 |
| 900 | 31 | 3.8 | 12" | 1200° | 8" | 2" | 1 3/8" | Nickel-Plated Steel | 8" | 304 Stainless Steel | 10-32 | 5/8" | No | 11" | 0000000 | 00000 |
| 1,100 | 35 | 4.6 | 14" | 1200° | 10" | 2" | 1 3/8" | Nickel-Plated Steel | 10" | 304 Stainless Steel | 10-32 | 5/8" | No | 13" | 0000000 | 00000 |
| 1,250 | 31 | 5.2 | 15 1/4" | 1200° | 11 1/4" | 2" | 1 3/8" | Nickel-Plated Steel | 11 1/4" | 304 Stainless Steel | 10-32 | 5/8" | No | 14 1/4" | 0000000 | 00000 |
| 1,550 | 31 | 6.5 | 17 7/8" | 1200° | 13 7/8" | 2" | 1 3/8" | Nickel-Plated Steel | 13 7/8" | 304 Stainless Steel | 10-32 | 5/8" | No | 16 7/8" | 0000000 | 000000 |
| 1,700 | 31 | 7.1 | 19 1/2" | 1200° | 15 1/2" | 2" | 1 3/8" | Nickel-Plated Steel | 15 1/2" | 304 Stainless Steel | 10-32 | 5/8" | No | 18 1/2" | 0000000 | 000000 |
| 1,900 | 31 | 7.9 | 21" | 1200° | 17" | 2" | 1 3/8" | Nickel-Plated Steel | 17" | 304 Stainless Steel | 10-32 | 5/8" | No | 20" | 0000000 | 000000 |
| 2,200 | 31 | 9.2 | 23 3/4" | 1200° | 19 3/4" | 2" | 1 3/8" | Nickel-Plated Steel | 19 3/4" | 304 Stainless Steel | 10-32 | 5/8" | No | 22 3/4" | 0000000 | 000000 |
| 2,400 | 32 | 10 | 25 1/2" | 1200° | 21 1/2" | 2" | 1 3/8" | Nickel-Plated Steel | 21 1/2" | 304 Stainless Steel | 10-32 | 5/8" | No | 24 1/2" | 0000000 | 000000 |
| 2,500 | 30 | 10.4 | 26 3/4" | 1200° | 22 3/4" | 2" | 1 3/8" | Nickel-Plated Steel | 22 3/4" | 304 Stainless Steel | 10-32 | 5/8" | No | 25 3/4" | 000000 | 000000 |
| 2,800 | 30 | 11.7 | 30 1/2" | 1200° | 26 1/2" | 2" | 1 3/8" | Nickel-Plated Steel | 26 1/2" | 304 Stainless Steel | 10-32 | 5/8" | No | 29 1/2" | 0000000 | 000000 |
| 3,150 | 30 | 13.1 | 33 1/2" | 1200° | 29 1/2" | 2" | 1 3/8" | Nickel-Plated Steel | 29 1/2" | 304 Stainless Steel | 10-32 | 5/8" | No | 32 1/2" | 0000000 | 000000 |
| 3,450 | 31 | 14.4 | 35 7/8" | 1200° | 31 7/8" | 2" | 1 3/8" | Nickel-Plated Steel | 31 7/8" | 304 Stainless Steel | 10-32 | 5/8" | No | 34 7/8" | 0000000 | 000000 |
| 4,150 | 31 | 17.3 | 42 1/2" | 1200° | 38 1/2" | 2" | 1 3/8" | Nickel-Plated Steel | 38 1/2" | 304 Stainless Steel | 10-32 | 5/8" | No | 41 1/2" | 0000000 | 000000 |
With Offset Screw Terminals | ||||||||||||||||
| 500 | 24 | 2.1 | 10 1/2" | 1200° | 5 3/4" | 2" | 1 3/8" | Nickel-Plated Steel | 5 3/4" | 304 Stainless Steel | 10-32 | 5/8" | No | 9 1/2" | 00000000 | 00000 |
| 725 | 35 | 3 | 10 1/2" | 1200° | 5 3/4" | 2" | 1 3/8" | Nickel-Plated Steel | 5 3/4" | 304 Stainless Steel | 10-32 | 5/8" | No | 9 1/2" | 00000000 | 00000 |
| 750 | 23 | 3.1 | 14" | 1200° | 9 1/4" | 2" | 1 3/8" | Nickel-Plated Steel | 9 1/4" | 304 Stainless Steel | 10-32 | 5/8" | No | 13" | 00000000 | 00000 |
| 900 | 34 | 3.8 | 12" | 1200° | 7 1/4" | 2" | 1 3/8" | Nickel-Plated Steel | 7 1/4" | 304 Stainless Steel | 10-32 | 5/8" | No | 11" | 00000000 | 00000 |
| 1,100 | 33 | 4.6 | 14" | 1200° | 9 1/4" | 2" | 1 3/8" | Nickel-Plated Steel | 9 1/4" | 304 Stainless Steel | 10-32 | 5/8" | No | 13" | 00000000 | 00000 |
| 1,250 | 33 | 5.2 | 15 1/4" | 1200° | 10 1/2" | 2" | 1 3/8" | Nickel-Plated Steel | 10 1/2" | 304 Stainless Steel | 10-32 | 5/8" | No | 14 1/4" | 00000000 | 00000 |
| 1,550 | 33 | 6.5 | 17 7/8" | 1200° | 13 1/8" | 2" | 1 3/8" | Nickel-Plated Steel | 13 1/8" | 304 Stainless Steel | 10-32 | 5/8" | No | 16 7/8" | 00000000 | 000000 |
| 1,700 | 33 | 7.1 | 19 1/2" | 1200° | 14 3/4" | 2" | 1 3/8" | Nickel-Plated Steel | 14 3/4" | 304 Stainless Steel | 10-32 | 5/8" | No | 18 1/2" | 00000000 | 000000 |
| 1,900 | 30 | 7.9 | 21" | 1200° | 16 1/4" | 2" | 1 3/8" | Nickel-Plated Steel | 16 1/4" | 304 Stainless Steel | 10-32 | 5/8" | No | 20" | 00000000 | 000000 |
| 2,200 | 33 | 9.2 | 23 3/4" | 1200° | 19" | 2" | 1 3/8" | Nickel-Plated Steel | 16" | 304 Stainless Steel | 10-32 | 5/8" | No | 22 3/4" | 00000000 | 000000 |
| 2,400 | 33 | 10 | 25 1/2" | 1200° | 20 3/4" | 2" | 1 3/8" | Nickel-Plated Steel | 20 3/4" | 304 Stainless Steel | 10-32 | 5/8" | No | 24 1/2" | 00000000 | 000000 |
| 2,500 | 32 | 10.4 | 26 3/4" | 1200° | 22" | 2" | 1 3/8" | Nickel-Plated Steel | 22" | 304 Stainless Steel | 10-32 | 5/8" | No | 25 3/4" | 00000000 | 000000 |
| 2,800 | 31 | 11.7 | 30 1/2" | 1200° | 25 3/4" | 2" | 1 3/8" | Nickel-Plated Steel | 25 3/4" | 304 Stainless Steel | 10-32 | 5/8" | No | 29 1/2" | 00000000 | 000000 |
| 3,150 | 31 | 13.1 | 33 1/2" | 1200° | 28 3/4" | 2" | 1 3/8" | Nickel-Plated Steel | 28 3/4" | 304 Stainless Steel | 10-32 | 5/8" | No | 32 1/2" | 00000000 | 000000 |
| 3,450 | 31 | 14.4 | 35 7/8" | 1200° | 31 1/8" | 2" | 1 3/8" | Nickel-Plated Steel | 31 1/8" | 304 Stainless Steel | 10-32 | 5/8" | No | 34 7/8" | 00000000 | 000000 |
| 4,150 | 31 | 17.3 | 42 1/2" | 1200° | 37 3/4" | 2" | 1 3/8" | Nickel-Plated Steel | 37 3/4" | 304 Stainless Steel | 10-32 | 5/8" | No | 41 1/2" | 00000000 | 000000 |
Low-Profile Enclosure Heaters
Radiate heat inside narrow spaces to keep equipment warm and dry. These slim heaters fit where standard ones don’t. They protect equipment from premature failure caused by cold, condensation, and humidity.
Heaters without built-in control require a temperature switch or controller (not included) to regulate the heat they put out.
Heaters with a thermostat automatically turn on and off to maintain the set temperature range. Heaters with a nonadjustable thermostat have a set range that you cannot adjust. Those with an adjustable thermostat have a dial to manually change the temperature range.
Heaters with a steel cover guard against damage and prevent you from accidentally touching the heater.
For technical drawings and 3-D models, click on a part number.
Without Built-In Control—Steel with Steel Cover
Overall | Mounting | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Heat Output, Btu/hr. | Max. Area Heated @ Temp. Change | Wattage, W | Watt Density, W/sq. in. | Current, A | Radiant Heater Type | Max. Heat Output, °F | Lg. | Wd. | Ht. | Surface Temp., °F | Fasteners Included | No. of Holes | Hole Dia. | Each | |
120V AC—Screw Terminals | |||||||||||||||
| 340 | 45 cu. ft. @ 10° F 22 cu. ft. @ 20° F 15 cu. ft. @ 30° F 11 cu. ft. @ 40° F | 100 | 8.7 | 0.8 | Open | 1,040° | 8 1/2" | 1 1/2" | 3 1/2" | 765° | No | 2 | 3/8" | 00000000 | 000000 |
| 500 | 66 cu. ft. @ 10° F 33 cu. ft. @ 20° F 22 cu. ft. @ 30° F 16 cu. ft. @ 40° F | 150 | 6 | 1.3 | Open | 1,040° | 8 1/2" | 1 1/2" | 3 1/2" | 640° | No | 2 | 3/8" | 00000000 | 00000 |
| 850 | 113 cu. ft. @ 10° F 56 cu. ft. @ 20° F 37 cu. ft. @ 30° F 28 cu. ft. @ 40° F | 250 | 10 | 2 | Open | 1,040° | 8 1/2" | 1 1/2" | 3 1/2" | 825° | No | 2 | 3/8" | 00000000 | 00000 |
| 1,100 | 146 cu. ft. @ 10° F 73 cu. ft. @ 20° F 48 cu. ft. @ 30° F 36 cu. ft. @ 40° F | 350 | 14 | 2.8 | Open | 1,040° | 8 1/2" | 1 1/2" | 3 1/2" | 990° | No | 2 | 3/8" | 00000000 | 00000 |
| 1,700 | 226 cu. ft. @ 10° F 113 cu. ft. @ 20° F 75 cu. ft. @ 30° F 56 cu. ft. @ 40° F | 500 | 20 | 4.2 | Open | 1,040° | 8 1/2" | 1 1/2" | 3 1/2" | 1,120° | No | 2 | 3/8" | 00000000 | 00000 |
240V AC—Screw Terminals | |||||||||||||||
| 1,700 | 226 cu. ft. @ 10° F 113 cu. ft. @ 20° F 75 cu. ft. @ 30° F 56 cu. ft. @ 40° F | 500 | 20 | 2.1 | Open | 1,040° | 8 1/2" | 1 1/2" | 3 1/2" | 595° | No | 2 | 3/8" | 00000000 | 00000 |
250V AC—Screw Terminals | |||||||||||||||
| 850 | 113 cu. ft. @ 10° F 56 cu. ft. @ 20° F 37 cu. ft. @ 30° F 28 cu. ft. @ 40° F | 250 | 10 | 1 | Open | 1,040° | 8 1/2" | 1 1/2" | 3 1/2" | 830° | No | 2 | 3/8" | 00000000 | 00000 |
| 1,100 | 146 cu. ft. @ 10° F 73 cu. ft. @ 20° F 48 cu. ft. @ 30° F 36 cu. ft. @ 40° F | 350 | 14 | 1.4 | Open | 1,040° | 8 1/2" | 1 1/2" | 3 1/2" | 990° | No | 2 | 3/8" | 00000000 | 00000 |
Nonadjustable Thermostat—Silicone Rubber with Aluminum Plate
Overall | Mounting | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Heat Output, Btu/hr. | Max. Area Heated @ Temp. Change | Wattage, W | Watt Density, W/sq. in. | Current, A | Radiant Heater Type | Lg. | Wd. | Ht. | Surface Temp., °F | Fasteners Included | No. of Holes | Hole Dia. | Hole Ctr.-to-Ctr. | Flange Ht. | Each | |
120V AC—Wire Leads | ||||||||||||||||
40° to 60° F Temperature Setting Range | ||||||||||||||||
| 200 | 26 cu. ft. @ 10° F 13 cu. ft. @ 20° F 8 cu. ft. @ 30° F 6 cu. ft. @ 40° F | 60 | 5 | 0.52 | Enclosed | 6" | 2" | 9/16" | 65° | No | 2 | 1/4" | 4" | 1/2" | 0000000 | 0000000 |
| 400 | 53 cu. ft. @ 10° F 26 cu. ft. @ 20° F 17 cu. ft. @ 30° F 13 cu. ft. @ 40° F | 120 | 5 | 1.04 | Enclosed | 12" | 2" | 9/16" | 65° | No | 2 | 1/4" | 10" | 1/2" | 0000000 | 000000 |
105° to 140° F Temperature Setting Range | ||||||||||||||||
| 200 | 26 cu. ft. @ 10° F 13 cu. ft. @ 20° F 8 cu. ft. @ 30° F 6 cu. ft. @ 40° F | 60 | 5 | 0.52 | Enclosed | 6" | 2" | 9/16" | 145° | No | 2 | 1/4" | 4" | 1/2" | 0000000 | 000000 |
| 400 | 53 cu. ft. @ 10° F 26 cu. ft. @ 20° F 17 cu. ft. @ 30° F 13 cu. ft. @ 40° F | 120 | 5 | 1.04 | Enclosed | 12" | 2" | 9/16" | 145° | No | 2 | 1/4" | 10" | 1/2" | 0000000 | 000000 |
150° to 180° F Temperature Setting Range | ||||||||||||||||
| 200 | 26 cu. ft. @ 10° F 13 cu. ft. @ 20° F 8 cu. ft. @ 30° F 6 cu. ft. @ 40° F | 60 | 5 | 0.52 | Enclosed | 6" | 2" | 9/16" | 180° | No | 2 | 1/4" | 4" | 1/2" | 0000000 | 000000 |
| 400 | 53 cu. ft. @ 10° F 26 cu. ft. @ 20° F 17 cu. ft. @ 30° F 13 cu. ft. @ 40° F | 120 | 5 | 1.04 | Enclosed | 12" | 2" | 9/16" | 180° | No | 2 | 1/4" | 10" | 1/2" | 0000000 | 000000 |
Adjustable Thermostat—Steel with Steel Cover
Overall | Mounting | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Heat Output, Btu/hr. | Max. Area Heated @ Temp. Change | Wattage, W | Watt Density, W/sq. in. | Current, A | Radiant Heater Type | Max. Heat Output, °F | Lg. | Wd. | Ht. | Surface Temp., °F | Fasteners Included | No. of Holes | Hole Dia. | Each | |
120V AC—Screw Terminals | |||||||||||||||
| 340 | 45 cu. ft. @ 10° F 22 cu. ft. @ 20° F 15 cu. ft. @ 30° F 11 cu. ft. @ 40° F | 100 | 8.7 | 0.8 | Open | 1,040° | 8 1/2" | 1 1/2" | 3 1/2" | 765° | No | 2 | 3/8" | 00000000 | 0000000 |
| 500 | 66 cu. ft. @ 10° F 33 cu. ft. @ 20° F 22 cu. ft. @ 30° F 16 cu. ft. @ 40° F | 150 | 6 | 1.3 | Open | 1,040° | 8 1/2" | 1 1/2" | 3 1/2" | 640° | No | 2 | 3/8" | 00000000 | 000000 |
| 850 | 113 cu. ft. @ 10° F 56 cu. ft. @ 20° F 37 cu. ft. @ 30° F 28 cu. ft. @ 40° F | 250 | 10 | 2 | Open | 1,040° | 8 1/2" | 1 1/2" | 3 1/2" | 825° | No | 2 | 3/8" | 00000000 | 000000 |
| 850 | 113 cu. ft. @ 10° F 56 cu. ft. @ 20° F 37 cu. ft. @ 30° F 28 cu. ft. @ 40° F | 350 | 14 | 2.8 | Open | 1,040° | 8 1/2" | 1 1/2" | 3 1/2" | 990° | No | 2 | 3/8" | 00000000 | 000000 |
| 1,700 | 226 cu. ft. @ 10° F 113 cu. ft. @ 20° F 75 cu. ft. @ 30° F 56 cu. ft. @ 40° F | 500 | 20 | 4.2 | Open | 1,040° | 8 1/2" | 1 1/2" | 3 1/2" | 1,120° | No | 2 | 3/8" | 00000000 | 000000 |
240V AC—Screw Terminals | |||||||||||||||
| 1,700 | 226 cu. ft. @ 10° F 113 cu. ft. @ 20° F 75 cu. ft. @ 30° F 56 cu. ft. @ 40° F | 500 | 20 | 2.1 | Open | 1,040° | 8 1/2" | 1 1/2" | 3 1/2" | 595° | No | 2 | 3/8" | 00000000 | 000000 |
250V AC—Screw Terminals | |||||||||||||||
| 850 | 113 cu. ft. @ 10° F 56 cu. ft. @ 20° F 37 cu. ft. @ 30° F 28 cu. ft. @ 40° F | 250 | 10 | 1 | Open | 1,040° | 8 1/2" | 1 1/2" | 3 1/2" | 830° | No | 2 | 3/8" | 00000000 | 000000 |