Gas air heater / wall-mounted
GS+ mark Climate Technology


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  • Installation:



MARK manufactures a gas-fired, high-performance 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 OpenTherm clock thermostat. The GS+ is suitable in many situations due to its extensive capacity range from 35 to 150 kW. The GS+ is designed to heat garages, warehouses, distribution centres and showrooms. MARK BV provides a 2 year full product warranty as standard and up to 10 years reducing warranty with the stainless steel heat exchanger.

Features of the Mark GS+
Efficiency > 106%.
Modulating premix burner.
Outlet temperature sensor.
Low temperature rise of the exit air.
Low thermal stratification of the heated air.
Stainless steel heat exchanger.
Condensation/frost sensor.
Corrosion-resistant aluzinc housing.
OpenTherm thermostat or 0-10 volt.


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