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Watlow Heaters

​For more than 100 years, Watlow has been solving some of the world's most demanding industrial heating problems.
​Proheat is an authorized distributor of Watlow electric heaters, including band heaters, cartridge heaters, tubular heaters, flexible heaters, and more. Watlow heaters can be configured to address a variety of unique applications.
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Watlow Air Heaters

Watlow Air Heaters

Watlow has developed a line of process air heaters that offer performance and versatility in medium to low temperature applications .....

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Watlow Cartridge & Insertion Heaters

Watlow Cartridge & Insertion Heaters

Watlow's cartridge and insertion heaters can be inserted into holes, used as immersion heaters placed directly in liquid or in protective .....

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Watlow Tubular Heaters

Watlow Tubular Heaters

Single- and double-ended Watlow tubular heaters lend themselves to virtually the entire range of immersion and air heating applications .....

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Watlow Flexible Heaters

Watlow Flexible Heaters

Flexible heaters from Watlow are thin, bendable, and shaped to fit almost any type of equipment .....

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Watlow Immersion Heaters

Watlow Immersion Heaters

Watlow's immersion heaters are designed primarily for direct immersion in liquids such as water, oils, solvents and process solutions, molten .....

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Watlow Circulation Heaters

Watlow Circulation Heaters

Watlow's circulation heaters are compact heating systems for fluids and gases .....

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Watlow Fluid Delivery Heaters

Watlow Fluid Delivery Heaters

Watlow's innovative fluid delivery heaters produce consistent results by reducing temperature and viscosity variations .....

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Watlow High-Temperature Heaters

Watlow High-Temperature Heaters

Watlow leads the industry in developing high-temperature heating technologies and products in various sizes and constructions to fit a broad range .....

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Watlow Strip Heaters

Watlow Strip Heaters

Watlow's strip/clamp-on heaters are a versatile solution for a number of applications .....

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Watlow Nozzle Heaters

Watlow Nozzle Heaters

Watlow offers a full line of hot runner nozzle heaters for the plastics industry as well as slip-on heaters for the medical and analytical industries .....

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Watlow RAYMAX® Panel Heaters

Watlow RAYMAX® Panel Heaters

Watlow's RAYMAX® panel heaters are ideal for process heating requiring "hot-face" temperatures above 1000 F° .....

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Watlow Mineral Insulated (MI) Band Heaters

Watlow Mineral Insulated (MI) Band Heaters

The MI band heater from Watlow® is a high-performance heater .....

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We love you guys. It's easy to order, we get shipments quick and my rep solves tough problems the right way. We get answers that work.

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Watlow Heater Insights

Product Showcase: Watlow RAYMAX® Panel Heaters

​The RAYMAX® radiant panel heaters from Watlow serve a wide range of needs, from contamination-resistant surfaces to fast responding high-temperature panels.



Watlow: From St. Louis to Shanghai

​Watlow has been revolutionizing the electric heating industry since its inception in 1922. Now with factories and technology centers in the US, Mexico, Europe, and Asia, what was once a small shop has become an unyielding international giant.



Video: A Day in the Life of Watlow Products

From our transportation to the food we eat to our very health, Watlow heater products help to maintain so many aspects of what we do every day.



Product Showcase: Watlow FIREBAR®

The Watlow FIREBAR® heater greatly improves upon traditional round tubular heating elements.



Product Showcase: Watlow FIREROD®

In 1954, Watlow's FIREROD® cartridge heater was patented with the ability to provide ​superior heat transfer, uniform temperatures, and resistance to oxidation and corrosion throughout demanding high-temperature applications.



Product Showcase: Watlow MI Band Heaters

The capabilities of Watlow heaters cater to a large variety of unique applications, but we wanted to focus on a particular heater: the MI ("mineral insulated") Band Heater.

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