Product Description
Watlow Duct Heater – LDH, D, & MDH Series
They are easily installed in applications requiring a wide range of temperature versus air flow combinations. 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 downtime costs 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. Watlow® 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
• Resistance coil in sheath is protected from corrosive
environments
Performance Capabilities
• Watt densities up to 40 W/in2 (6.2 W/cm2)
• Recommended process temperatures from
-20 to 1200°F (-29 to 650°C)
• Catalog P/N wattages up to 225kW
• Voltages up to 600VAC
