The BIO DUO 500 Woodchip Boiler 1700K BTU is a commercial-grade biomass heating system engineered to deliver powerful and reliable heat for large-scale applications. With a heating output range of 150–500 kW (500k–1700k BTU), this unit is capable of heating areas of up to 50,000 sq ft, making it well-suited for commercial, industrial, and institutional facilities that require high and consistent heat output.
This boiler is designed for fuel flexibility and can operate using wood chips and wood waste of varying quality, allowing users to take advantage of available biomass resources. An automatic fuel supply system supports continuous operation while reducing the need for constant manual handling, helping improve efficiency and ease of use in daily operation.
Built for durability, the system features high-strength ASTM A106 boiler steel, 2-inch thick thermal insulation, and a powder-coated exterior for long service life. The design includes wide front-access doors to simplify maintenance tasks such as heat exchanger cleaning, fuel loading, and ash removal.
For safety and performance control, the boiler includes an integrated security system with thermal water protection and fuel line temperature monitoring, along with a TIS TRONIC 660HD automation controller. This controller manages fans, fuel feeders, pumps, flue gas monitoring, boil protection, and thermostat or internet module connections. With a minimum efficiency of 86%, the APOLLO BIO DUO 500 provides dependable, efficient biomass heating for demanding commercial environments.
