CSN® air heater type 802

The industrial air heater type 802 is used to heat gaseous media. These screw-fitted heaters can be used at overpressures of up to 30 mbar.


CSN® air heaters type 802 are specially designed to heat gaseous media efficiently. They are used in various industries, including ventilation, air conditioning and drying systems as well as in process engineering. These duct air heaters are particularly suitable for applications where overpressures of up to 30 mbar can occur.

Product advantages

  • With integrated fan on request.
  • Replaceable, highly compressed tubular heating elements.
  • Precise temperature monitoring and control possible with the aid of electronic controls.
  • In contrast to combustion heaters, no combustion fumes or noise.
  • High operational safety and reliability.

Technical data



Process data

Medium and temperature (up to 500°C) according to specification

Process connection

Flange frame according to duct size

Heating elements

Tubular heating elements


Painted steel; 1.4301 (AISI 304);

1.4404 (AISI 316L); 1.4571 (AISI 316 Ti);

1.4828 (AISI 309); 1.4876 (Incoloy 800);

2.4858 (Incoloy 825)

Duct cross-section (mm x mm)

(250 x 250) to (3000 x 3000)

Temperature monitoring

Temperature controller

Safety temperature limiter


PT100 or thermocouple


0.5 to 1500 kW


110 to 690 V

Protection class

IP54 to IP66

Terminal box

Powder-coated steel RAL 7035, stainless steel

Customised versions on request

The following certifications are available on request:

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