Natural convection electric trench heating


  • 2-stage safety switch
  • silent operation thanks to natural convection
  • specially developed heating elements for optimise heating
  • ideal alternative to convectors with LPHW
  • natural convection for even dissipation of cold air in a space
  • fast warm-up yet silent operation
  • matching frame for every roll-up grille: for a perfect overall look
  • effective cold air screening of large windows
  • stainless steel electric heating coil with galvanised steel fins, with protective sensor tube above
  • low surface temperatures
  • simple, convenient electric control by surface-mounted thermostat
  • clear view and feel good temperature in front of full-length glass façades
  • for complete room heating, supplementary heating an/or cold air screening
  • finished heating trench only 150 mm deep in screed
  • Trench width 207 mm
  • four trench lengths 750, 1150, 1550 and 1950 mm
  • integral output control
  • control via room thermostat or external BMS possible
  • integral safety thermostat and thermal fuse

Katherm NE units operate silently with natural convection and fast warm-up. They are the solution when a LPHW or LPWW convector is not possible or planned.


Each unit is fitted with an integral output control for the electric heating element. Room control is provided by conventional thermostats (2-point). The output is controlled via an integral output switch.


Yes, this is possible without the need for any extra accessories. Every Katherm NE then has a separate mains power feed.


Download documents:

  Katherm NE - technical catalogue   (6.77 MB)
  Katherm NE - Installation manual   (1.5 MB)