Viessmann Vitomax 300-LW Low Pressure Hot Water Boiler

The Vitomax 300-LW M82A is a low pressure hot water boiler for flow temperatures up to 120 °C, an operating pressure of 6, 10 or 16 bar, and a heating output from 2.1 to 6.0 MW.

The three-pass boiler (low NOₓ series) features low combustion chamber loading with clean combustion and low nitrogen oxide emissions.

  • In gas operation, NOx emissions are less than 70 mg/Nm³; in oil operation, less than150 mg/Nm³.
  • Irrespective of the fuel used, it generates 2.1 to 6.0 MW with no output losses.
  • Wide water galleries and large water content provide excellent natural circulation and reliable heat transfer.
  • No additional boiler pumps are required, so hydraulic connection is significantly easier.
  • Low pressure drop on the hot gas side thanks to optimum heating surface and smoke tube design.

Its’ Benefit :

  • Clean combustion with low nitrogen oxide emissions
  • Reliable heat transfer; straightforward hydraulic connection
  • Low radiation losses thanks to optimum thermal insulation
  • Vitocontrol control panel for all boiler-related control equipment
  • Approved in accordance with Pressure Equipment Directive 97/23/EC or Gas Appliances Directive 90/396/EEC


* For other configuration or spare part enquiries, please consult JATI