Biomass boiler FIREMATIC 349-501

pelletwood pelletwood chip

Product overview
The HERZ firematic 349/401/501 kW is a biomass boiler for wood chips and wood pellets. Compact design with a power range from 104 to 501 kW, intended for industrial and large commercial heating applications.

Suitable applications

• Large buildings: hospitals, schools, public buildings, hotel complexes, dedicated heating buildings, swimming pools, wellness and fitness centres
• Housing estate projects: district heating systems, multi-family dwellings
• Industrial plants: joineries, furniture manufacturers and similar industrial processes

Main features

• Automatic de-ashing: Two ash discharge screws automatically convey combustion and fly ash into ash bins. Option for fully automatic ash removal to an external larger ash container to reduce emptying intervals.
• Feeding system & step-/moving-grate burning chamber: Fuel (wood chips or pellets) is fed laterally into the combustion chamber by a double stoker screw. The moving step grate (high-quality cast-iron elements) transports fuel through the combustion zone and provides mechanical cleaning. Ash is removed by an automatically tipping grid and an underlying screw conveying ash to the ash bin.
• Energy-saving combustion via lambda probe: Integrated lambda probe continuously monitors flue gas values, detects changes in fuel quality and regulates primary and secondary air to maintain optimal combustion and low emissions across partial loads.
• Automatic cleaning of the heat exchanger: Built-in turbulators lift and lower (also during operation) to keep heat-exchanger surfaces clean. Falling ash is collected and conveyed to the ash bin by an auger, ensuring stable efficiency.
• User-friendly controller: T-CONTROL touch controller with intuitive menu and display. Remote visualization and maintenance via smartphone/PC/tablet possible. Data transfer and software updates via USB. Modbus communication available.
• Flue gas condenser (ECOcond): Optional condensing unit to increase overall system efficiency (fuel savings up to ~10% depending on conditions) and improve dust separation efficiency.
• Integrated E-filter: Optional integrated electrostatic filter (E-filter) for extremely low dust emissions. Fine dust separated by the E-filter is transported with fly ash into the common automatic ash discharge container. The E-filter includes a fully automatic cleaning system.
• Cascade operation: With HERZ T-CONTROL, up to eight boilers can be operated in cascade for higher total output and improved efficiency under variable heat demand.

Characteristics / technical specifications

• Brand: HERZ
• Model / commercial denomination: firematic 349-501
• Type: Biomass boiler for wood chips and wood pellets
• Power range: 104 to 501 kW
• Automatic ash handling: two ash discharge screws; option for fully automatic external ash removal; auger transport to ash bins
• Combustion chamber: step- / moving-grate with high-quality cast-iron grate elements; automatic tipping grid for ash removal
• Controls: T-CONTROL touch controller; remote visualization and maintenance; USB data transfer; Modbus available
• Emission control options: integrated E-filter available; flue gas condenser (ECOcond) for condensing operation and dust reduction
• Cascade capability: up to 8 boilers