The Unimat 3-pass design has proven its worth thousands of times in practical applications. The Unimat heating boiler is offered in various sizes and can also be used in a pooled-output multi-boiler system.

The UT-L is used particularly readily in hospitals, homes, office buildings, residential complexes as well as throughout all sectors of 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.

Type UT-L
Heat transfer medium Low-pressure hot water
Design 3-pass flame tube/smoke tube technology
Capacity in kg/hour 650 to 19 200
Safety design overpressure (in bar) up to 16
Max temperature in °C 120 (110 in Europe)
Fuel Oil, gas

  • 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 firing 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 °C