Electric Duct Heaters

GRAND manufactures open coil heating elements and can supply virtually any duct heater.
Most simple space heating applications use the open coil design.
Only the high Grade 25% chromium alloy resistance wire is used in all GRAND duct heaters with max. temperature 1300°C.
This wire has a higher maximum operating temperature, greater life, lower sag, less resistance change and higher corrosion
resistance. An extended shank on the terminal places the critical resistance coil-to-terminal connection well out into the
airstream to keep it cool even in applications where up to 1” of interior insulation is used in the duct.

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