Marlo Heat Exchangers
Heat transfer solutions to cool, heat, and dehumidify air streams

Our teaming agreement with Marlo Heat Transfer Solutions enables us to manufacture Marlo’s quality heat transfer, refrigeration, and air handling coils for industrial, commercial, utility, and marine markets. These custom-engineered solutions are used in various configurations to cool, heat, and dehumidify air streams for process and building comfort.
Product Overview
Combining Energy Steel’s manufacturing expertise with Marlo’s proven designs, we deliver custom-engineered heat transfer solutions resulting in superior performance for applications ranging from standard comfort heating and cooling to complex industrial processes. DRS Marlo Coils are custom-designed and are available in a wide range of special materials and thicknesses to meet the rugged demands of industrial and commercial applications. We design and manufacture a broad range of coil styles, including fluid coils, steam coils, refrigerant coils, specialty products, and shell and tube heat exchangers.
Product Type Details
Fluid Coils
Fluid heat exchangers include standard water coils (W & P Models) for chilled water, hot water, glycol, and special fluid applications. For demanding environments, we offer cleanable coils (J, X & K Models) with brass end caps for interior access, and removable box header coils (Q, Y & R Models) specifically designed for high-sediment applications like river or lake water systems.
Steam Coils
Energy Steel manufactures the complete line of Marlo steam coils, including distributing steam coils (D & H Models) with same-end supply and condensate connections, standard steam coils (S & V Models) with straight-through steam paths, and M Coils featuring inner steam tubes supplied from both ends with a single condensate header. Our steam solutions are ideal for low or high-pressure applications in various commercial and industrial settings.
Refrigerant Coils
Refrigeration solutions include direct expansion evaporator coils (E Models) and condenser coils (C Models) compatible with most refrigerants. Each coil undergoes rigorous quality control to ensure contaminant-free interior surfaces.
Specialty Products
Energy Steel manufactures Marlo’s innovative specialty products, including split core coils for limited-space installations, removable coil modules (RCM) for easy replacement in existing systems, air-tight housing coils for environmental containment, and the patented Stratomizer® dampered face and bypass coil system for reliable preheating and tempering of fresh outside air.
Shell and Tube Heat Exchangers
Shell and tube heat exchangers feature round housings designed for applications requiring higher pressures and optimized tube bundles for efficient heat transfer. These units are particularly well-suited for industrial processes and facilities with access to steam, such as power plants, hospitals, universities, and manufacturing facilities.
Marlo Heat Exchangers
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