Low Temp Duct Heaters

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  • For use in heating ducts and dryers up to 100 °F input temp.
  • Finned tubular heater construction
  • Automatic or manual reset thermostat control
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Vulcan Low-Temperature Duct Heaters are solidly-built comfort and air process heaters designed for use where the inlet air temperature does not exceed 100 °F (38 °C). They utilize a Finned Tubular Heater construction assembled to a rugged metal terminal housing with integral mounting flange for installation into the air duct. Over-temperature thermostats are included.

  • Rugged Tubular heating element construction including compacted magnesium oxide and nickel chromium wire
  • Steel sheath with a continuous-wound fin fully brazed and treated with a corrosion resistant finish
  • Heavy-duty galvanized steel terminal housing with integral mounting flange
  • Automatic reset over temperature thermostat preset at 210 °F (99 °C)
  • Manual reset over temperature thermostat preset at 335 °F (169 °C)
  • Tubular heating elements are replaceable
  • Many catalog wattage, voltage, and length combinations
  • Comfort Heating
  • Low Temperature Processes
  • Forced Air Drying
  • Dehumidification

Models and Options

LOW TEMPERATURE DUCT HEATERS - TYPE VFT- 600 CU. FT. / MINUTE MINIMUM AIR FLOW MODELS

240 Volt 1 Ph480 Volt 3 PhWattsMin. Duct Depth (in.)Min. Duct Depth (mm)Element Width (in.)Element Width (mm)Approx. Wt. (lb)Approx. Wt. (kg)
VFT38-3B1VFT38-3C330008203.26152.410.14.4
VFT312-5B1VFT312-5C3500012304.86152.411.65.1
VFT68-6B1VFT68-6C360008203.212304.814.16.1
VFT318-7B1VFT318-7C3750018457.26152.413.15.7
VFT98-9B1VFT98-9C390008203.218457.219.78.6
VFT612-10B1VFT612-10C31000012304.812304.817.27.5
VFT324-10B1VFT324-10C31000024609.66152.414.66.4
-VFT128-12C3120008203.224609.625.311
-VFT912-12C31200012304.818457.224.310.6
-VFT158-15C3150008203.23076230.913.5
-VFT912-15C31500012304.818457.224.310.6
-VFT618-15C31500018457.212304.820.38.8
-VFT1212-16C31600012304.824609.631.513.7
-VFT1212-20C32000012304.824609.631.513.7
-VFT624-20C32000024609.612304.823.410.2
-VFT918-22C32250018457.218457.228.912.6
-VFT1512-25C32500012304.83076238.616.8
-VFT1218-25C32500018457.224609.637.616.4
-VFT630-25C3250003076212304.826.411.5
-VFT1218-30C33000018457.224609.637.616.4
-VFT924-30C33000024609.618457.233.514.6
-VFT1518-37C33750018457.23076246.320.2
-VFT930-37C3375003076218457.238.216.6
-VFT1224-40C34000024609.624609.643.819.1
-VFT1524-50C35000024609.6307625423.5
-VFT1230-50C3500003076224609.65021.8
-VFT1530-62C362500307623076261.726.9

LOW TEMPERATURE DUCT HEATERS - TYPE VFT- 900 CU. FT. / MINUTE MINIMUM AIR FLOW MODELS

240 Volt 1 Ph480 Volt 3 PhWattsMin. Duct Depth (in.)Min. Duct Depth (mm)Element Width (in.)Element Width (mm)Approx. Wt. (lb)Approx. Wt. (kg)
VFT38M-4C1VFT38M-4C340008203.26152.410.14.4
VFT68M-8C1VFT68M-8C380008203.212304.814.16.1
VFT318M-10C1VFT318M-10C31000018457.26152.413.15.7
-VFT98M-12C3120008203.218457.219.78.6
-VFT128M-16C3160008203.224609.625.311
-VFT158M-20C3200008203.23076230.913.5
-VFT618M-20C32000018457.212304.820.38.8
-VFT1218M-40C34000018457.224609.637.616.4
-VFT924M-40C34000024609.618457.233.514.6
-VFT1518M-50C35000018457.23076246.320.2
-VFT1524M-66C36670024609.6307625423.5

LOW TEMPERATURE DUCT HEATERS - TYPE VFT- 1400 CU. FT. / MINUTE MINIMUM AIR FLOW MODELS

240 Volt 1 Ph480 Volt 3 PhWattsMin. Duct Depth (in.)Min. Duct Depth (mm)Element Width (in.)Element Width (mm)Approx. Wt. (lb)Approx. Wt. (kg)
-VFT318H-13C31325018457.26152.413.15.7
-VFT324H-17C31775024609.66152.414.66.4
-VFT330H-22C322000307626152.416.17
-VFT618H-26C32650018457.212304.820.38.8
-VFT624H-35C33550024609.612304.823.410.2
-VFT918H-39C33975018457.218457.229.913
-VFT630H-44C3440003076212304.826.411.5
-VFT1218H-53C35300018457.224609.637.616.4
-VFT1518H-66C36630018457.23076246.320.2
-VFT930H-66C3660003076218457.238.216.6
-VFT1224H-71C37100024609.624609.643.819.1
-VFT1230H-88C3880003076224609.65021.8
-VFT1524H-88C38875024609.6307625423.5
-VFT1530H-110C3110000307623076261.726.9

 

Construction Details:
Heater Tubes: Hairpin shape – steel sheath with steel fin full braze entire length
High temperature aluminum finish
3, 6, 9, 12, or 15 heater tubes depending on rating
Element width equals end to end dimension across all elements
Element outside hairpin dimension is approx. 4-3/4″ (120.7 mm) for all models
Mounting: Flanged lip includes 1/4″ (6.4 mm) predrilled holes spaced 4″ (101.6 mm) apart
Number of mounting holes varies with size
Termination: Screw and nut terminals pre-wired ready for power hook-up
Enclosure: 16 gauge galvanized steel – general purpose – with wiring knockouts
Thermostats: Overtemp manual and automatic thermostats provided
Require wiring through contactor
Custom: Custom lengths, watts, and volts are available

OPTIONS FOR LOW TEMP DUCT HEATERS

 

Option Code Description
WX  Special Wattage
VX  Special Voltage
DX  Custom Duct Depths
SS  Stainless Sheath and Fins
GT  Gas Tight Element to Mounting Flange
EB4  Moisture Resistant Terminal Housing
EB7  Explosion Resistant Housing
HW  Heavy Wall “Armorwall Sheath
TC  Type J or K Thermocouple
BC  Bulb and Capillary Thermostat

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