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Home Service FAQs FAQ of biomass-fired boilers How should customers select a 20 ton biomass steam boiler and a 40 million kcal biomass thermal oil boiler?

How should customers select a 20 ton biomass steam boiler and a 40 million kcal biomass thermal oil boiler?

03 Jul 2026

When customers ask for a 20 ton biomass steam boiler and a 40 million kcal biomass thermal oil boiler, the project usually involves a large production line with both steam demand and high-temperature heat demand. These two systems serve different purposes. A 20 ton biomass steam boiler supplies steam for process heating, drying, sterilization, reaction, textile processing, food production or other steam users. A 40 million kcal biomass thermal oil boiler supplies high-temperature thermal oil for processes that require stable heat transfer under relatively low system pressure.

For a 20 ton biomass steam boiler, ZOZEN Boiler can discuss suitable biomass boiler series according to fuel characteristics and steam parameters. The SZL series biomass steam boiler covers 6–35 t/h capacity, and the DZL series non-ash-deposit biomass steam boiler covers 10–40 t/h capacity. These product ranges can meet many 20 t/h biomass steam requirements, subject to fuel analysis and working pressure confirmation. Common fuels include biomass pellets, wood chips, palm shell, rice husk, corn cob, straw, waste wood and other biomass fuels.

For a 40 million kcal biomass thermal oil boiler, the capacity needs to be converted and reviewed carefully. Thermal oil boiler selection is usually expressed in kW or kcal/h. ZOZEN Boiler’s YLW series biomass-fired horizontal thermal oil boiler covers 2800–29200 kW with working pressure of 0.8 MPa. If the customer requests a 40 million kcal biomass thermal oil boiler, the required thermal duty is higher than the listed standard range, so the engineering team needs to check whether a multi-boiler solution or customized system design is more suitable.

Before selecting a 20 ton biomass steam boiler and a 40 million kcal biomass thermal oil boiler, customers should prepare the following data:

Biomass fuel type and lower heating value
Fuel moisture, ash content and particle size
Required steam capacity and pressure
Thermal oil temperature and heat load
Daily operating hours
Emission requirements
Available installation space
Ash handling method
Local voltage and site conditions
For customers planning a factory visit, ZOZEN Boiler can arrange communication through the sales team and provide the factory address after confirming the visit schedule. ZOZEN Boiler is located in Wuxi, China, and has experience in boiler manufacturing, overseas delivery and industrial boiler system support.

A 20 ton biomass steam boiler and a 40 million kcal biomass thermal oil boiler should not be selected only by capacity name. Fuel condition, combustion structure, heat balance, dust removal, ash discharge and control system all affect long-term operation. ZOZEN Boiler can review the project data and provide a configuration proposal for both the 20 ton biomass steam boiler and biomass thermal oil system.

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