U-bent Finned Tubular Elements

AccuTherm’s finned tubular heaters are suitable for use in a wide variety of forced air heating applications

The steel units are suitable for applications where the sheath temperature will not exceed 850° F.

For higher temperatures or in applications where corrosion is a problem these can be made in stainless steel or monel.

Units can be assembled in a frame to provide a compact duct heater.

Because of the greater surface area provided by the heat transfer fins, it is possible to fabricate units providing greater kW capacities, with lower operating temperatures.

Product Inquiry

Standard Features

Seamless steel sheath material.

High purity MgO Powder, compacted to provide maximum heat conductivity and optimum dielectric strength.

Type ‘A’ 80/20 resistance wire sized to provide the lowest wire watt density for maximum life, precision wound to provide uniform heat flux over length of element.

Fusion welded junction between cold pin resistance wire giving superior life.

Bends recompacted to restore MgO density on formed units.

Continuous steel fin edge wound and copper brazed to heater sheath. This provides maximum heat transfer from sheath to fin, without vibration.

Fin and sheath are painted with high temperature aluminum paint to resist oxidation.

Optional Features

Threaded fittings for mounting

Ceramic to metal end seals for high temperature or corrosive environments

Other sheath and fin materials

High temperature ceramic coating

Custom bracket mountings

Custom terminal options

Also available in smaller diameter units

60 Watts per Lineal Inch Steel Sheath with Steel Fins Hairpin 11 Watts/SQ. In.

Catalog #
Watts
Volts
A
C
E
F
HTFL-100-2
HTFL-100-4
1000
240
480
11 ½
12 ⅝
2″
2″
HTFL-125-2
HTFL-125-4
1250
240
480
13 ⅛
14 ⅜
2″
2″
HTFL-150-2
HTFL-150-4
1500
240
480
15 ⅝
16 ¾
2″
2″
HTFL-200-2
HTFL-200-4
2000
240
480
19 ⅞
21
2″
2″
HTFL-250-2
HTFL-250-4
2500
240
480
24
25 ⅛
2″
2″
HTFL-300-2
HTFL-300-4
3000
240
480
28 ⅛
29 ¼
2″
2″
HTFL-400-2
HTFL-400-4
4000
240
480
36 ½
37 ⅝
2″
2″
HTFL-500-2
HTFL-500-4
5000
240
480
44 ⅞
46
2″
2″
HTFL-600-2
HTFL-600-4
6000
240
480
53 ⅛
54 ¼
2″
2″

75 Watts per Lineal Inch Steel Sheath with Steel Fins Hairpin 14 Watts/SQ. In.

Catalog #
Watts
Volts
A
C
E
F
HTFM-100-2
HTFM-100-4
1000
240
480
9 ⅞
11
2″
2″
HTFM-125-2
HTFM-125-4
1250
240
480
11 ½
12 ⅝
2″
2″
HTFM-150-2
HTFM-150-4
1500
240
480
13 ⅛
14 ¼
2″
2″
HTFM-200-2
HTFM-200-4
2000
240
480
16 ½
17 ⅝
2″
2″
HTFM-250-2
HTFM-250-4
2500
240
480
19 ⅞
21
2″
2″
HTFM-300-2
HTFM-300-4
3000
240
480
23 ⅛
24 ¼
2″
2″
HTFM-400-2
HTFM-400-4
4000
240
480
29 ⅞
31
2″
2″
HTFM-500-2
HTFM-500-4
5000
240
480
36 ½
37 ⅝
2″
2″
HTFM-600-2
HTFM-600-4
6000
240
480
43 ⅛
44 ¼
2″
2″

100 Watts per Lineal Inch Steel Sheath with Steel Fins Hairpin 18 Watts/SQ. In.

Catalog #
Watts
Volts
A
B
C
E
HTFH-100-2
HTFH-100-4
1000
240
480
8 ⅛
9 ¼
2″
2″
HTFH-125-2
HTFH-125-4
1250
240
480
9 ⅜
10 ½
2″
2″
HTFH-150-2
HTFH-150-4
1500
240
480
10 ⅚
11 ¾
2″
2″
HTFH-200-2
HTFH-200-4
2000
240
480
13 ⅛
14 ¼
2″
2″
HTFH-250-2
HTFH-250-4
2500
240
480
15 ⅚
16 ¾
2″
2″
HTFH-300-2
HTFH-300-4
3000
240
480
18 ⅛
19 ¼
2″
2″
HTFH-400-2
HTFH-400-4
4000
240
480
23 ⅛
24 ¼
2″
2″
HTFH-500-2
HTFH-500-4
5000
240
480
28 ⅛
29 ¼
2″
2″
HTFH-600-2
HTFH-600-4
6000
240
480
33 ⅛
34 ¼
2″
2″

Brochures

Closed Tank Heating

Watt Density

Percentage of Wattage

Looking for a
heating solution?

Discuss your project in detail with one of our Application Engineers and they will provide a heating solution perfectly suited to the needs of your application, as well as your budget. Contact us today!

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