Description
ELECTRICAL DUCT HEATERS
ONK duct heaters are constructed from 11mm diameter heating elements mounted to a steel flange, duct heaters are easily adapted to many non-pressurized air-heating systems.
They are easily installed in applications requiring a temperature control of air at ventilation.
The modular duct heater offers increased reliability. The individual modules are removable through the housing of the assembly, which eliminates the need to pull the complete heater from the duct work.
This reduces cost for service and maintenance because the heating elements can be replaced individually. Performance improvements include quicker response time and reduced infiltration from the air stream being heated into the electrical enclosure.
The heated air must not contain any combustible or explosive substances, chemical vapours, dust, soot etc.
The duct heaters are the complete units and are not designed for independent operation.
ONK duct heaters offer advantages over gas or oil fired and open coil electric units with:
– Installation flexibility – no flues or fuel lines
– 100 percent energy efficient – no energy loss up the flue
– Universal availability of electricity




