L- Series Heaters

Designed for the Surface Finishing Industry

Robust and high-performing L-shaped immersion heater that performs well in even the most demanding metal plating environments. Vapor-resistant and flame-retardant terminal enclosure as well as thermal protectors standard. Available in Stainless Steel, Incoloy and Titanium variants. As well as standard and derated watt densities (DL-Series). Suitable for a range of metal finishing applications including aqueous alkaline solutions, plating, and phosphate tanks, amongst others.



Terminal enclosure

Durable Vapor-Resistant, Flame-Retardant, Polypropylene Terminal Enclosure.

Unheated riser with ``gooseneck`` extension

Customizable vertical riser heights available and ``Goose neck`` right angle standard to keep the terminal enclosure away from any tank vapors.

Watt densities

Standard watt density of 35 watts per square inch ensure an extended service life. Derated watt density of 18 watts per square inch available in DL-Series. Other custom watt densities available.

Conduit and lead wire

36`` flexible liquid tight conduit and 48`` of lead wire standard. Longer lengths available.

Element sheath material

Choose from 304 Stainless Steel, 316 Stainless Steel, Incoloy 800, or Titanium. All other wetted surfaces either 316 Stainless Steel or Titanium.

Wattage and Voltage

Available in both single and three phase, 120 to 600 Volts. Wattages of 1 to 50 kilowatts (within amperage constraints).


Element Configurations

Available in 3, 6, 9 and 12 element configurations so you can fit the maximum wattage you need in the space available. Element lengths customizable to fit in the space available.


Vertical Stacked Elements

A space saving design that puts the heater on the side of the tank, not the bottom.

Expert Assistance Available for Designing Your Custom L-Series Heaters

Drawing on more than 70 years experience serving the surface finishing industry, Heatmax stands as the ideal collaborator for your upcoming project. Speak to us to find out if a standard or custom L/DL -Series heater would best meet the unique requirements of your applications, corrosion profile, tank size, and control requirements. Speak to an expert today.

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Almost 70 Years

Heatmax History

Founded by an ex-Navy engineer, George Strokes, the company got its start making quartz immersion heaters in Euclid, Ohio in 1952.

George called the company Glo-Quartz®.

Growing rapidly he moved the company to bigger premises in Willoughby and then Mentor. Other factories were opened in Pasadena, California (now closed) and then Tucson, Arizona.

Tom Strokes took over leadership of Glo-Quartz in the mid-70s and moved to roll reduced metal heating element range.

A final legacy, Tom launched a new brand name, Heatmax Heaters, in 2020. The new brand name both better represented the wide range of products we make and challenged the common perception that we were quartz heater specialists only.