Stock-Line slip-in type duct heaters are designed to meet most residential and light commercial requirements for use in forced air duct systems. They may be used as the primary source of heat or as supplementary or stand-by heat to Heat Pump, Gas or Oil Fired Systems.
Several units may be used in a large duct or systems with branch ducts for zoning or separate thermostat for zoning or separate thermostat control. The heaters are designed to operate in a variety of duct sizes.
Stock-Line units are UL listed and meet the requirements of the National Electric Code (NEC). The units have multi-voltage ratings, high grade nickel chrome elements, galvanized steel control panel and frame, and Warren's exclusive element support system.
Built-in components include primary and secondary limit protection, magnetic disconnecting contactors (24 volt control), a fan relay, and circuit fusing where required by UL and NEC.
Custom built Model CBK electric duct heaters are available for units with accessories not furnished on Stock-Line electric duct heaters.
*SL15A, SL15B, and SL20A are units with circuit fusing.