Specialist in Climate Control Since 1945

GS+ natural gas air heater

natural gas air heater

Gas-fired high performance natural gas air heater with axial fan

Mark manufactures a gas-fired, high-performance natural gas air heater with an axial fan. This condensing equipment provides efficiency greater than 106% (lower value). Heat is generated via a modulating (5:1) premixburner which results in very low gas consumption.

The GS+ is operated using an Optitherm+ clock thermostat or an Interface+ module that allows a connection with the BMS (building management system) via Modbus or a 0-10V contact. The Optitherm+ also makes it possible to control the GS+ units remotely with an app for mobile phone and tablet.

The GS+ is suitable in many situations due to its extensive capacity range from 13,6 to 142,2 kW. The GS+ is designed to heat garages, warehouses, distribution centres and showrooms.

Mark provides a 2 year full product warranty as standard.

Features of the Mark GS+ natural gas air heater

  • Efficiency > 106%.
  • Energy-saving;
  • Environmentally-friendly.
  • Modulating premix burner.
  • Outlet temperature sensor.
  • Low temperature rise of the exit air.
  • Low thermal stratification of the heated air.
  • Stainless steel heat exchanger.
  • Corrosion-resistant aluzinc housing.

Standard equipment

  • Stainless steel combustion chamber & heat exchanger
  • Closed combustion circuit
  • Advanced modulating burner technology
  • Electronic ignition
  • Low NOx
  • Powerful axial fan(s)
  • Downflow hood with horizontal louvres
  • CE-approval
  • PIN 0063BP3341
  • Carbon trust (UK)

Optional: speed controlled low noise EC-motor. Advantages:

  • The highest efficiency in case of speed control
  • Up to 50% energy saving in case of partial load
  • Almost completely linearly adjustable
  • Long lifetime
  • Low noise level
  • Integrated electronic thermal protection

Mark GS+ air heaters installed in a production hall.

Controls/to be applied for:

Interface Module

Interface+ Module

Interface module for Mark air heaters An Interface+ can be used in two ways. 1. Power control: An externally...

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