Specialist in Climate Control Since 1945

GC air heater

air heater

Reliable and highly versatile air heater

Over the past 70 years, this gas-fired air heater with centrifugal fan has proven itself to be a highly reliable and versatile heating appliance. The enormous variety of additional sections provides the option of configuring this appliance relatively easily for any required indoor climate. The Mark GC has various burner controls: on/off, high/low or pulsating. Use of the centrifugal fan renders the air heater ideally suited for connection to a duct system, spanning an external pressure of 300 Pa. The system fan can be set to high/low on a project basis for applications where the noise level is important. It is also possible to take in or recirculate (fresh) outside air. The GC can also be incorporated into a rooftop or air conditioning unit.
The GC is designed to heat garages, warehouses, workshops, schools, sports halls and churches, among other applications, with or without a duct system.

Features of the Mark GC:

  • Stainless steel AISI 409 heat exchanger
  • Stainless steel AISI 321 burners
  • Efficiency ≥ 90%
  • Low NOx
  • Electronic ignition
  • Aluzinc coating
  • Closed appliance
  • Centrifugal fan
  • Reliable
  • Long lifespan


  • Isolator switch
  • Wide selection of additional sections (see brochure)
  • Air filters from G2 to F7
  • For higher external pressures, centrifugal fans with backward curved blades are available
  • Burner control: on/off, high/low or pulsating
  • Suitable for a building management system (GBS with a 0-10 volt signal)
gas-fired air heater

Controls/to be applied for:


Switchbox W9-1 B

Switchbox with inlet temperature monitoring Order code: 3004370 Switchbox for controlling 1 air heater with 100% external air supply...


Switchbox W9-1 BR

Switchbox to control air heater Order code: 3004371 Switchbox for controlling 1 air heater with 100% external air supply...


Switchbox W9-1 BRL

Switchbox  for controlling air heater Order code: 3004225 Switchbox for controlling 1 air heater with external air/recirculated air connection...

MPVC Controller

MPVC Controller

Controller to convert 0-10Vdc signal Article code: 3004295 Controller to convert the 0-10Vdc signal from a building management system...

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