hot water boiler / fuel oil / gas / fire tube



  • Product:

    hot water

  • Power source:

    fuel oil, gas

  • Firebox:

    fire tube

  • Other characteristics:

    three-pass, condensing, high-pressure

  • Power:

    Min.: 13,000,000 W (44,357,820 BTU/h)

    Max.: 38,000,000 W (129,661,320 BTU/h)

  • Pressure:

    Min.: 0 bar (0 psi)

    Max.: 30 bar (435.11 psi)


The UNIMAT UT-HZ hot water boiler is deployed in all areas where very large amounts of heat are required. The most important areas of use are district heating generation and the processing industry.

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.