• Effective 3-pass design
  • Standard utilisation ratio without flue gas heat exchanger up to 95 % and up to 105 % with condensing heat exchanger
  • Effective thermal insulating materials with a high degree of efficiency
  • Approved for low return flow temperatures from 50 °C
  • Suitable for all burner systems
  • Pollutant reduced combustion thanks to the use of highly developed firin systems and careful matching of the best boiler and burner combination
  • Easy for maintenance thanks to fully hinged boiler front door
  • Robust, reliable and unsurpassed in its durability
  • No burner minimum load level limit for keeping dry on the flue gas side
  • Smoke tube passes free of flow components
  • High permissible temperature spread of up to 50 K
Type Heat transfer medium Design Capacity in kW Safety design overpressure in bar Max temperature in C Fuel
UT-L Low-pressure hot water 3-pass flame tube/smoke tube technology 650 to 19 200 up to 16 120 (110 in Europe) Oil / gas

Additional properties

Proved technology with a high degree of flexibility

The UNIMAT 3-pass design that has proven its worth a thousand times over in practical application.The UNIMAT heating boiler UT-L is offered in various sizes and can also be used as a multi-boiler system in pooled output. 

The heating boiler is CE certified and is designed and equipped in compliance with the European Pressure Equipment Directive. It is used for a wide range of applications at low temperatures and pressures.

Optimally suited for the most varied tasks

The heating boiler UT-L is used particularly in hospitals, homes, office buildings, residential complexes as well as throughout industry. Its high level of flexibility makes the UT-L ideally suitable for use as a reserve and peak load boiler at heating power stations and combined heat and power plants.

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