Berko Introduces Adaptable, Compact COS-E Series Wall Heaters with Exclusive Clip-n-Fit Feature

Share With:

Berko®, a leading choice among contractors for heating and ventilation systems, offers a redesigned fan-forced wall heater that provides supplemental heat for numerous residential and commercial applications.

The new COS-E™ series of wall heaters features a compact universal design, dual wattage and voltage, compliance with safety standards and easy installation. Berko products are manufactured and marketed by Marley Engineered Products, a leading electric heat manufacturing company based in Bennettsville, S.C.

A major innovation of the COS-E™ heaters is its patented Clip-n-Fit® feature, which allows the installer to change the wattage of the heater to a lower output to accommodate any application or space. Each heater is factory wired for its maximum wattage and, with a clip of a wire, can be reduced to half the wattage. COS-E heaters are available in 208/240 volts, 120 volts and outputs ranging from 2,000 to 375 watts.

“The Clip-n-Fit feature is exclusive to Marley Engineered Products and, when paired with the COS-E heater, provides greater general flexibility for installers, end users and distributors alike,” said Dennis Krob, product manager for Marley Engineered Products. “This feature allows the user to reduce the heater’s wattage in an effort to accommodate a wide range of applications. Suppliers who stock the COS-E heater have been able to lower their inventory costs and increase inventory turns by minimizing SKUs.”

Additional key features include:

  • Impeller for silent heat
  • Access to elements without disturbing the wiring/controls
  • Small footprint with clean, contemporary aesthetic
  • Adapter plate conversion – CRA

“Understanding the needs of our channel partners and end users resulted in the development of the COS-E Series,” said Krob. “With the new design and value added features, these heaters can match the look and feel of existing spaces, providing quiet, supplemental heat to meet the expectations of our customers.”

With a sleek and modern redesign, COS-E heaters provide efficient, quiet operations as a result of using an impeller, which does not generate noise like fan blade vibrations. These heaters are easily integrated into residential spaces such as basements, bathrooms, bedrooms and hallways or commercial spaces such as offices, conference rooms, restrooms, stock rooms and reception areas. The COS-E’s user-friendly design offers fast and easy installation for the contractor while the performance and silent operation are appreciated by all end users.

The COS-E Series is ETL approved for use in the U.S. or Canada. To learn more about the COS-E Series of wall heaters visit or locate the nearest Marley Engineered Products sales rep at

Join the conversation: