Complete Heaters Line
Watlow LDH SERIES Duct Heaters
Watlow duct heaters are engineered for high-performance, non-pressurized air heating systems, offering modular design, energy efficiency, and durable construction to meet the demands of industrial applications.
D SERIES Duct Heaters
Watlow duct heaters are constructed of sturdy 0.430 in. (11 mm) diameter WATROD heating elements mounted to a 1⁄4 in. (6 mm) thick steel flange. These air duct heaters are easily adapted to many non-pressurized air-heating systems.
ULTRAMIC® Advanced Ceramic Heater
Watlow's ceramic heater line includes the ULTRAMIC® advanced ceramic heater designed for applications requiring a clean, non-contaminating heat source, while ensuring optimal effectiveness of the equipment and process.
Screw Plug Heaters
Screw plug heater designed for precise immersion heating of liquids in industrial tanks and vessels, with advanced safety and control options.
10'"-14" Flange Heaters
WATROD™ and FIREBAR® Heaters Designed to Heat Forced-Circulation Air, Gases or Liquids
1/8" FIREROD® Cartridge Heater
The 1/8" FIREROD® cartridge heater by Watlow delivers reliable, high-performance heating in a compact design. As part of our proven cartridge heaters portfolio, this miniature solution features high watt density and swaged construction for efficient heat transfer and long-lasting durability. Built to meet tight space constraints, FIREROD® cartridge heaters provide consistent thermal performance in demanding conditions.
3"-8" Flange Heaters with Baffles
WATROD™ and FIREBAR® Heaters Designed to Heat Forced-Circulation Air, Gases or Liquids
3"-8" Flange Heaters without Baffles
WATROD™ and FIREBAR® Heaters Designed to Heat Forced-Circulation Air, Gases or Liquids
1/2" FIREROD® Cartridge Heater
FIREROD Cartridge Heaters are the Premier Choice in Swaged Cartridge Heating
1/4" FIREROD® Cartridge Heater
FIREROD Cartridge Heaters are the Premier Choice in Swaged Cartridge Heating
3/4" FIREROD® Cartridge Heater
Watlow's cartridge heater line includes the 3/4" FIREROD® cartridge heater, engineered to deliver consistent heat transfer and long-lasting performance in high-temperature environments. With precision manufacturing and robust construction, this swaged cartridge heater ensures excellent heat transfer efficiency, durability and uniformity.
3/8" FIREROD® Cartridge Heater
FIREROD Cartridge Heaters are the Premier Choice in Swaged Cartridge Heating
5/8" FIREROD® Cartridge Heater
Watlow's cartridge heater portfolio includes the FIREROD® line, featuring the 5/8"FIREROD cartridge heater engineered for high-performance heating, consistent thermal transfer, and long-term reliability. Built with premium materials and tight manufacturing control, FIREROD® cartridge heaters deliver uniform temperatures, corrosion resistance, and efficient heat transfer across a wide range of industrial environments.
10"-14" Flange Heaters
ANSI Flange Tubular Heaters Ideal For Heating Liquids, Gases, Tanks and Pressure Vessels Requiring Higher Kilowatts
3"-8" Flange Heaters without Baffles
ANSI Flange Tubular Heaters Ideal For Heating Liquids, Gases, Tanks and Pressure Vessels Requiring Higher Kilowatts
3"-8" Flange Heaters with Baffles
ANSI Flange Tubular Heaters Ideal For Heating Liquids, Gases, Tanks and Pressure Vessels Requiring Higher Kilowatts
MULTICELL™ Insertion Cartridge Heater
Watlow's MULTICELL™ insertion cartridge heater is built to deliver efficient heat dissipation, precise temperature uniformity, and extended service life in high-demand heating applications.
ASSURANT™ Type F (or TF)
ASSURANT Type F heater jackets provide flexibility in designing optimum heating systems for small diameter gas delivery lines with complex geometries like bends, valves, and MFCs.
ASSURANT™ Type C (or TC)
ASSURANT Type C heater jackets provide optimum heating for larger pipe diameter sizes for pump lines, fore lines and exhaust lines and are ideal for high temperature/low outgassing for cleanroom applications.
ASSURANT™ SPECIALTY GAS™
ASSURANT SPECIALTY GAS™ is the ideal solution for long, small diameter pipe runs in the sub fab.
STRETCH-TO-LENGTH® Heaters
The STRETCH-TO-LENGTH® heater is the perfect solution for semiconductor gas line applications requiring precise temperatures to prevent condensation or over-temperature breakdown of critical process chemistries.
STREAMLINE™ Gas Delivery Thermal System with ATS™ Technologies
Watlow’s New STREAMLINE Gas Delivery Thermal System with ATS Technologies Provides Temperature Uniformity, a Reduced Footprint, Extensive Diagnostics and Fast Development Times
ASSURANT™ HT
ASSURANT HT provides an increased temperature capability up to 350°C, making it the perfect solution for the most demanding gas line applications.
Plate Flange Immersion Heaters
For Fluid Heating Applications Requiring Low to Medium Wattage Requirements
HELIMAX™ Electric Heat Exchanger with Continuous Helical Flow Technology™
Watlow's HELIMAX™ electric heat exchanger delivers efficient, reliable heating for air, water, and gas applications. Its advanced continuous helical flow design reduces fouling and helps maintain stable thermal performance in compact, high-demand environments.