Air Heaters
FLUENT® In-Line Heater
Watlow’s new FLUENT in-line heater is a small, lightweight, high-performance heater that can replace both a traditional immersion type heater or a heater wrapped around a tube as part of a thermal system. Watlow’s FLUENT heater is designed as an integrated solution that replaces multiple components in a system. This heater design reduces overall system cost and complexity. Because of its high watt density, it offers ultra-fast response leading to higher system performance.
Featuring Watlow’s patented thermal spray technology, the heater makes use of its entire surface to produce heat, which optimizes heat transfer and temperature uniformity.
Online Configurator
Fluent technical drawings PDF downloads
Silicone Rubber Enclosure Heaters
Designed for freeze and condensation protection, Watlow's enclosure heaters are rugged, reliable and safe to operate. These rectangular-shaped, wire-wound silicone rubber enclosure heaters can be ordered by themselves with adhesive or vulcanized to an aluminum mounting plate. A thermostat can be attached to the heater or mounted separately. Pictured are enclosure heater units with thermostat on heater in foreground and heater with remote thermostat in background.
375 Finned Strip Heaters
Watlow's 375 finned strip heaters are constructed of highly-compacted MgO-based insulation, which conducts heat efficiently from the nickel chromium element wire to the sheath. Two-inch wide (51 mm) aluminized steel fins are attached in a way that maximizes surface contact so heat is transferred into the air faster. Lower sheath temperature and element life are all maximized by this finned construction.
Finned strip heaters com in available lengths from 5 1⁄2 to 48 in. (140 to 1220 mm).
FINBAR™ Single- Ended Heaters
Composed of aluminized steel fins press-fitted to a one-inch single-ended FIREBAR element, the FINBAR finned tubular heater is designed to improve heat transfer to the air and permits putting more power in tighter spaces—like forced air ducts, dryers, ovens and load bank resistors.
Heat transfer, lower sheath temperature and element life are all maximized by the FINBAR heater's finned construction. Installation is simplified by terminations exiting at one end and mounting accommodations on both ends.
LDH, MDH SERIES and 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.
Duct heaters are easily installed in applications requiring a wide range of temperature versus air flow combinations.
The modular duct heater offers increased reliability. The individual modules are removable through the housing of the assembly, which eliminates the need to pull the complete heater from the ductwork. This reduces downtime costs because the heating elements can be replaced individually. Performance improvements include quicker response time and reduced infiltration from the air stream being heated into the electrical enclosure.
WATROD™ Enclosure Heaters
WATROD enclosure heaters are designed to prevent freezing and condensation in electrical and mechanical housings. The WATROD heater element is enclosed in a perforated, aluminized-steel bracket to prevent direct contact with the heating element.
The enclosure heater's stainless steel sheath wall resists corrosion and protects the heating coil from exposure while the silicone resin seal provides protection against humid storage conditions and is effective up to 390°F (200°C).
Cast Aluminium Circulation Heaters
CAS’s family of heaters are ideal solutions for demanding applications. These heaters consist of a helical coiled tube and tubular element cast into an aluminum body. The aluminum body serves as the heat transfer media between the tubular element and the coiled fluid or gas transfer tube. The unique construction of the heater allows it to be used where thermally sensitive materials such as paints and resins or flammable materials such as fuels and solvents are being heated.