• Intuitive boiler control on SPC basis with very high transparency of operating data
  • High level of efficiency due to 3-pass technology, an integrated flue gas heat exchanger and effective heat insulation materials
  • Up to 93 % boiler efficiency without, up to 96 % boiler efficiency with flue gas heat exchanger and up to 105 % with condensing heat exchanger
  • Suitable for all burner systems
  • Pollutant reduced combustion thanks to the use of highly developed firing systems and careful matching of the best boiler and burner combination
  • Easy for maintenance – conveniently accessible on both the flue gas side as well as the water side
  • Robust, reliable and unsurpassed in its durability
  • Acceptance in accordance with the European Pressure Equipment Directive – applied almost worldwide
  • Simple extension options thanks to integrated module technology
  • Smoke tube passes free of flow components
  • High permissible temperature spread of up to 40 K
Type Heat transfer medium Design Capacity in kW Safety design overpressure in bar Max temperature in oC Fuel
UT-HZ High-pressure hot water 3-pass-2-flame tube / smoke tube tehnology 13 000 to 38 000 up to 30 up to 240 Oil / gas

Additional info

Proven over many decades

The UNIMAT UT-HZ hot water boiler is a shell boiler in 3-pass technology with two completely separate flame tubes and smoke gas passages. This 2-flame tube/smoke tube boiler has been in use for decades and is built with separate smoke gas passages. Thus, the boiler is also suitable for operation with only single firing. Flue gas heat exchangers can be supplemented in modular design for heat recovery.

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