Wood heating systems from 50 to 1250 kW Heating systems ◄ Industrial systems Refrigeration systems

Heating with wood – the most natural fuel in the world The rising cost of fossil fuels and growing environmental awareness are creating an ever increasing demand for renewable forms of energy. An advanced wood heating system is an environmentally responsible and economical alternative, or addition, to conventional heating systems for fossil fuels. Sustainable When wood is harvested in sustainable forestry, it is a renewable and environmentally compatible source of energy and an important part of sustainable resource management. CO2 neutral When wood is burned, only as much CO2 is released as...

Wood heating systems from 50 to 1250 kW

Rising energy prices, limited fossil fuel resources and increasing requirements for environmental protection make biomass ever more important as a fuel. Viessmann's wood heating systems cover the medium output range from 50 to 1250 kilowatts. The products available include wood boilers that are suitable for logs, shavings, pellets and woodchips. With fuel supply and discharge systems, flue gas cyclones, fine dust filters and even heating containers and heating centres, the company supplies all system components from a single source. These boilers are mainly designed for industrial, commercial...

Fully automatic biomass boiler Convenient heating centre for automatic charging with pellets or woodchips The Vitoligno 300-H biomass boiler has been designed for great flexibility when it comes to the small and medium output range. The heating centre can be charged with either pellets or woodchips. A multitude of automatic functions make the Vitoligno 300-H particularly easy to operate. These functions include an efficient automatic ignition system with low power consumption, as well as fully automatic ash removal from the grate and heat exchanger. Because of the vertical arrangement of the heat...

In combination with the Vitotrol 350-C (option), the boiler can also be controlled from the living space. In addition, the system can be extended to include up to 24 control loops using control modules. These can be used for heating circuits, DHW heating or in conjunction with a district heating supply line. The clear colour touchscreen with graphic capability provides straightforward and intuitive operation. The Vitotrol 350-C can also be used as a room controller, control loop extension and cascade controller for up to four wood boilers. This means that different fuels and boilers with various...

Wood boiler with rotation combustion Innovative wood boiler with rotation combustion from 150 to 540 kW. For wood fuels with a maximum moisture content of 35 percent. Vitoflex 300-RF wood boiler with rotation combustion for pellets, woodchips and shavings The patented rotation combustion system of the Vitoflex 300-RF wood boiler is state of the art. A feed screw conveyor continuously conveys wood fuel onto a moving grate, where gasification of the fuel occurs (with Lambda regulated primary air supply). Continuous gasification occurs under air starvation. Rotary fans mix rising combustion gases with...

Vitoflex 300-RF – wood boiler with rotation combustion Take advantage of these benefits Fully automatic wood boiler with rotation combustion Rated heating output range: 150 to 540 kW For dry wood fuels with a maximum moisture content of 35 % High efficiency (up to 94 %) and low emissions in load operation due to controlled primary and secondary air supply, and low particle combustion Permissible flow temperature up to 100 °C Permissible operating pressure: 3 bar (4.5 bar on request) Two-pass heat exchanger and modulating output control (4:1 control range) Automatic ignition precludes the need for...

Wood boiler with grate combustion Wood boiler with state of the art grate combustion, from 390 to 1250 kW. For wood fuels with a maximum moisture content of 50 percent. The moving infeed grate, proven combustion retort and sloping external grate in the Vitoflex 300-UF optimally combine the benefits of infeed and underfeed combustion. A feed screw conveyor guides the wood fuel into the combustion retort, where it is predried. The fuel is completely degassed on the external grate and the moving infeed grate. The wood gases are then burned with the aid of a regulated supply of secondary air. The inside...

Vitoflex 300-UF wood boiler with pneumatic cleaning Take advantage of these benefits Fireclay-lined combustion chamber with external grate and moving infeed grate Fully automatic wood boiler with grate combustion Rated heating output range: 390 to 1250 kW For the use of wood fuels with a moisture content of up to 50 % (M50*) High efficiency thanks to proven combustion technology, three-pass heat exchanger, modulating output control and regulated primary and secondary air supply Permissible flow temperature up to 100 °C Maximum operating pressure: 6 bar Easy servicing thanks to fully automatic ash...

Comprehensive energy management Modulating output control for maximum output and safe performance of the heating system Advanced boiler control units for biomass systems offer the same control convenience as most standard control units for fossil fuel systems. Thanks to its modulating output control and a heating water buffer cylinder, the system flow temperature can be matched to the prevailing weather conditions. Boiler control (for Vitoflex 300-RF) The digital modulating output control ensures optimum combustion by accurately controlling the relationship between the combustion air, recirculated...

Heating water buffer cylinder For biomass systems, a heating water buffer cylinder is an important component for control accuracy (the ability to adapt the system output to the actual demand). The heating water buffer cylinder makes it easier to form temperature layers, effectively reduces frequent switching on and off of the combustion system and adapts the system flow temperature to meet the heat demand. With all control units, there are five sensor inputs available for optimum burner modulation in accordance with the buffer temperature. Remote monitoring (option) The heating system can be remotely...