Infrared, immersion, circulation, tubular or coil - this section includes several different shapes, sizes and types of heaters.

Fluid Tracing System

QMax FTS (Fluid Tracing System) is a high-performance heat tracing system that is used with standard stainless or copper tubing, or electric tracing in the case of QMax ETS. The concept is simple: maximize the heat transfer from a heating medium to the process using application-specific, highly-conductive aluminum. The company models every application using thermal FEA so it can predict and prevent failure. It utilizes high efficiency conductive heat transfer rather than convective heat transfer.

QMax Industries Inc., (704) 643-7299,

Thermal Fluid Heaters

With the addition of the ASME Code 16 million and 20 million BTU/hr heaters, the company’s line of fuel-fired horizontal heaters includes units sized from 2.4 million to 20 million BTU/hr output. Others systems include fuel-fired vertical heaters from 0.2 million to 14 million BTU/hr output and electric heaters to 1.7 million BTU/hr output. They are offered available as stand-alone products or as part of a skid-mounted system with circulation pumps and expansion tanks. The thermal fluid heater systems can reach 750°F (345°C).

Fulton, (315) 298-5121,,

Process Heaters

Hot Room Heater Series will quickly heat enclosures up to 150°F (66°C) to bake, cure, dehydrate or heat products or coatings requiring heat in a nonhazardous environment. The heaters can be permanently mounted or portable, and they can be placed inside the room (ducting not required) or placed outside the room with the air ducted to and from the space.

Fostoria Process Equipment Division, TPI Corp., (800) 495-4525,

Flanged Immersion Heaters

Designed for use in tanks, large vats and reservoirs, flanged immersion heaters consist of a 150 or 300 lb flange for mounting and exclusive heating elements. The element’s dry well and low density design allow them to be serviced or replaced without draining the tank. The low watt density design keeps the element sheath temperature low, reducing the chance of heater coking or buildup. The heaters can be supplied with custom UL-listed industrial control panels integrally mounted and wired to the heaters, or without, if controls already are present. The flange and heater tubes can be made of mild steel or various grades of stainless steel.

Process Heating Co., (206) 682-3414,,

Flow Through Heaters

Series FTH is designed primarily for providing heat that regulates liquid temperature from 90 to 190°F (32 to 88°C). The heaters have a titanium element that resists corrosion. The enclosure is made of ABS plastic and is water resistant. The flow-through heaters are suited for industrial plants to maintain water temperature as it is pumped around the plant or testing laboratories to maintain the water temperature in test tanks.

Omega Engineering Inc., (203) 359-1660,,

Thermal Fluid Heater

Designed for high temperature industrial process applications, Twin-Coil HYT heater has two close-wound helical coils to provide thermal efficiency in a compact package. The internal use of a ceramic fiber blanket in place of cast refractory reduces weight and maintenance. Built with a rugged design, it is suitable for use with a range of fuels and thermal fluids.

General Combustion Corp., (407) 290-6000,,

Single Helical Coil Thermal Fluid Heater

The HC-1 utilizes a single helical coil configuration with two passes of flue gas along coil surface. The single coil design offers sturdy reliability period after reliability. Features include fuel source flexibility as well as standard or engineered burner configurations for use with both traditional and alternative fuel sources. BACT burners are available to meet all emission requirements. The combustion chamber size ensures no flame impingement. It can be designed with a vertical up-fired, vertical down-fired, or horizontal configuration. Capacities range from 500,000 to 40 million BTU/hr.

Sigma Thermal, (770) 427-5770,

Electric Immersion Heaters

Immersion heaters are constructed using high-grade materials and put through a vigorous quality assurance testing procedure to ensure that each heater conforms to specification. Heaters are fabricated in a range of types and styles, including cartridge, screw plug and flanged. Applications include water heating, boilers, oil heaters, freeze protection, storage tanks, railroad tank cars, process systems and heat transfer systems.

Hubbell Heaters, (203) 378-2659,,

Heat Recovery Equipment, Thermal Fluid Heaters

Heat recovery equipment is suited for use by chemical, petrochemical, petroleum and power producers to take advantage of the hot gases generated by process reactions during production of many chemicals and processes. Typical processes include sulfur recovery, fluid catalytic cracking, flue gas cooling, reactor effluent cooling and incineration. Circulating thermal fluid systems can be used with every heat transfer fluid type available, including mineral oils at lower temperatures, synthetic fluids at elevated temperatures, and inorganic fluids such as molten salt and liquid metals for the highest temperature applications.

TEI Struthers Wells, (814) 726-1000,,

Thermal Fluid Heaters

Thermal fluid heaters are offered in 0.5 to 75 million BTU/hr in either horizontal or vertical, two-pass or three-pass models, and up-fired or down-fired configurations. Other features include factory preassembled design, optional on-site setup and startup, and factory service options. All are customized to meet customer specifications.

Heatec, (423) 821-5200,,

Hot Air Process Heaters
Leister process heating tools can be integrated into a process to provide electronically controlled heat from ambient to 1,600°F (871°C) with ±1°F accuracy and infinitely adjustable airflow from 3 to 300 cfm. They are designed to precisely and uniformly focus heat using nozzles. The line consists of blowers, heaters and controllers with specific directional capabilities, all of which can be configured as turnkey systems.
Malcom Co.Inc., (888) 807-4030,

Gas Infrared Replacement Emitters
The M2 product line includes fuel-saving, direct-retrofit, replacement emitters for existing gas infrared systems. Fast heatup and cooldown, with operating temperatures as high as 2,200°F (1,204°C), are features of an effective heat source. Manufacturer also can install and tune the replacement emitters. Other services include refurbishing manifolds and updating control systems. Available models include emitters with or without screens as well as a replaceable-screen version. An improved ignition and detection design utilizes existing flame safety equipment while providing robust, reliable flame signals. Emitters are supplied with gaskets, mounting bolts and pipe fittings ready to mate to existing connections.
Marsden Inc., (856) 663-2227,

Explosion-Proof Enclosure Heater
Model XPMC explosionproof enclosure heater is designed to provide freeze and condensation protection in small spaces. It has an anodized aluminum body protecting a cartridge heater and is CSA certified for hazardous locations (Class I, Div. 1 and 2, Groups B, C and D). it is suited for use in panel manufacturing, gas analyzers, petrochemical processing, pump houses and motor control centers that require an explosionproof solution. The units can be ordered in 6 and 12" (150 and 300 mm) lengths, ranging from 120 to 480 V.
Chromalox, (412) 967-3800,

Self-Regulating Heating Cables
Self-regulating heating cables increase power as temperatures fall and decreases as temperatures rise. Self-regulating heating cables can be designed to meet the demands specific to each application. Well-suited for metallic or nonmetallic piping and tanks, the self-regulating heating cables allow for ease of design and installation. Applications include freeze protection and temperature maintenance.
Thermon Americas Inc., (800) 820-4328,

Oil Immersion Heaters
Used for oil preheating, oil baths, wax and other heat transfer fluids, oil immersion heaters provide years of trouble-free service when the tubes are completely covered with fluid, used on correct voltage and kept free of carbonization. With watt densities of 16 to 22 W/in2, they are designed for use with heat transfer oil and have a maximum operating temperature of 550°F (288°C). Heaters with lower watt densities are designed for use with Bunker C fuel oil. Preheaters and line and suction heaters have a maximum operating temperature of 250°F (121°C). All are constructed with steel heads and tubing. The TRO, TSO and TSOL Series use a dielectric material to support the coiled heating elements, and the heater tube is pressed to increase thermal conductivity.
Trent Inc., (215) 482-5000,

Quartz Twin-Tube Infrared Lamp
Golden 8 infrared heaters are made with high-quality quartz tubes and gold reflectors for the highest efficiency. The twin-tube design provides high radiation power and good mechanical stability to the heating application. The lamps are offered in custom and standard configurations in lengths up to 21.33' (6.5 m) and in short- and medium-wave designs, or fast-response medium-wave versions. Dimensions and filaments of the infrared heaters are matched to specific process requirements.
Heraeus Noblelight, (678) 258-3898,

Benchtop Heat Tool
Glo-Ring is suited for applications such as heat shrinking, plastic tube bending, soldering, adhesive curing, solder preforms and butt welding. The benchtop unit incorporates quartz-encapsulated heating elements that open and close to encircle work pieces with instant radiant heat at temperatures up to 1,500°F (815°C). Radio frequency interference is not generated with the heat tool and it is suitable for use in clean rooms and testing areas.
Eraser Co. Inc., (315) 454-3237,

Split-Sheath Cartridge Heaters
Watt-Flex is offered in a choice of leads for many process heating applications. Options include flexible stainless-steel hose or braid to protect against frequent flexing and abrasion, straight or right-angle headers, extra-long leads, high-temperature leads, threaded post terminals, fiberglass or silicon-rubber sleeving, an internal ground wire, and a Quick Disconnect lead with a convenient male plug.
Dalton Electric Heating Co. Inc., (978) 356-9844,

Heat Trace Cable System
T-Links provide a specified amount of heat anywhere along its length in direct response to local temperature or thermodynamic variations to maintain process heating and prevent freezing. It offers preterminated, watertight connectors and modular cable lengths. Available in 5, 10, 20, 50, 100 and 200' standard lengths, the self-regulating heating cables can maintain temperatures up to 150°F (66°C) and will not burnout if overlapped. It is offered in 3-, 5-, 8- and 10 W/ft in 120 and 240 V.
Heat Trace Products LLC, (978) 534-2810,