Market leader in Climate technology


boiler factory

The high-efficiency boiler of Mark

The Mark POWERFLEX is a very compact and sustainable high-efficiency boiler for industrial use. Available in capacities from 340 kW to 600 kW.

The POWERFLEX is suitable to heat offices, garages, warehouses, apartment buildings, workshops, distribution centers and showrooms.

For a complete heating solution from Mark it is also possible to combine the POWERFLEX boiler with water-supplied products such as the TANNER MDA and INFRA AQUA ECO.


  • Competitive pricing
  • Proven and innovative technology
  • Cast aluminum heat exchanger
  • Robust
  • Low-noise
  • Advanced diagnostic system
  • Very low maintenance interval
  • Low service interval
  • Integrated pump control
  • Closed version available
  • Cascade control already integrated
  • Weather-dependant control
  • Control:
    • On/off thermostat
    • OpenTherm
    • BMS 0-10V control
  • Two year product warranty
  • One year service warranty

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