Biomass Boiler/Furnace Manufacturers - UPA Thermal

What is a biomass boiler?

A biomass boiler is a boiler equipment that primarily uses agricultural and forestry waste as fuel. It generates thermal energy by burning renewable agricultural residues such as wood chips, straw, rice husks and other similar materials, which can be converted into various forms including steam, hot water or thermal oil. Biomass boilers are widely applied in industrial processing, district heating, and power generation sectors.

UPA Thermal is a leading ISO 9001 certified biomass fired thermal oil boiler manufacturer, supplier, and exporter, offering turnkey solutions for industries worldwide. With over 30 years of experience in designing and manufacturing low-emission, high-efficiency biomass boilers, we help clients reduce carbon emissions while improving operational efficiency.

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Biomass gasification steam boiler	Biomass-fired Chain Grate Steam Boiler	Biomass-fired Reciprocating Grate Steam Boiler	Biomass Gasification Thermal Oil Heater

UPA Thermal's biomass boiler equipment creates significant value for investors:

Value 1. High Fuel Flexibility , Compatible with Multiple Biomass Types

Our biomass boilers are designed for exceptional fuel adaptability, supporting a wide range of solid biomass fuels, including wood chips, rice husk, palm fiber, and industrial wood waste. They can efficiently process fuels with high moisture content (10-50%) and low calorific value (2,300-4,000 kcal/kg), ensuring stable operation even with challenging fuel conditions.

Value 2. High Efficiency & Energy Savings , Industry-Leading Thermal Utilization

With gasification combustion technology and innovative structural design, our biomass boilers achieve 88%-91% thermal efficiency, far surpassing traditional coal-fired boilers (typically 75%-85%).

Value 3. Outstanding Environmental Performance , Meets Strict Emission Standards

All our industrial biomass boilers incorporate low-NOx combustion and staged air supply technology, ensuring PM, SO₂, and NOx emissions are well below the latest EU and Chinese environmental standards.

Value 4. Smart & Modular Design , Reducing Total Cost of Ownership

Fully automated control system (PLC-based) for real-time adjustments of temperature, pressure, and airflow, minimizing manual intervention and improving safety.

Biomass boiler models of UPA

Our Biomass Boiler Models : Designed for Maximum Efficiency

UPA Thermal provides a wide range of high-quality biomass boilers. Each model is designed for industrial use and available for purchase worldwide through our factory, supplier, and exporter services.

Biomass steam boiler

Biomass Gasification Steam Boiler: A high-efficiency boiler where fuels are gasified prior to combustion, achieving ≥91% thermal efficiency. Low NOx and SO₂ emissions make it ideal for environmentally conscious industries.

Chain Grate Steam Boiler: Directly burns solid biomass with broad fuel adaptability (10–50% moisture content), designed for efficiency ≥88%.

Reciprocating Grate Steam Boiler: Features dynamic grate agitation to enhance combustion for high-ash or irregular fuels (Ø30–50 mm). Easy maintenance and high reliability.

Biomass thermal oil boiler

Biomass Gasification Thermal Oil Heater: Delivers indirect heat transfer via high-temperature thermal oil (320°C), eliminates phase-change risks, achieves thermal efficiency of 88%, and reduces ash fouling risk through gas combustion.

Chain/Reciprocating Grate Thermal Oil Heater: Directly combusts solid biomass, supports low-calorific-value fuels (2,300–4,000 kcal/kg), and features modular construction for reduced installation cycles.

Biomass Steam Boiler Series – Parameters and Specifications

he following biomass steam boiler models are manufactured by UPA Thermal and available for purchase directly from our factory or through our global supplier network. Each boiler series is designed to meet diverse industrial requirements while maintaining high efficiency and environmental compliance.

Parameter	Biomass Gasification Steam Boiler	Biomass-fired Chain Grate Steam Boiler	Biomass-fired Reciprocating Grate Steam Boiler
Model	SZL8-SZL35	SZL8-SZL35	SZL8-SZL35
Rated evaporation (t/h)	8/10/15/20/25/35	8/10/15/20/25/35	8/10/15/20/25/35
Thermal power (MW)	5.6/7/10.5/14/18/25	5.6/7/10.5/14/18/25	5.6/7/10.5/14/18/25
Working pressure (MPa)	1.25/1.6/2.5	1.25/1.6/2.5	1.25/1.6/2.5
Steam temperature (°C)	193/204/226	193/204/226	193/204/226
Feed water temperature (°C)	104	104	104
Design efficiency (%)	≥91%	≥88%	≥88%
Boiler water volume (m³)	14.2/15/21/24/25/35	13.5/13.5/18/23/28/35	13.5/13.5/18/23/28/35
Heat exchange area	Main body (m²): 283-753	Main body (m²): 278-739	Main body (m²): 278-739
Heat exchange area	Economizer (m²): 264-1258	Economizer (m²): 240-1521	Economizer (m²): 240-1521
Applicable fuel	Biomass gas	Solid biomass:	Same as left
		Calorific value: 2,300-4,000 kcal/kg
		Moisture: 10-50%
		Particle size: Ø30-50mm (L<100mm)
Combustion type	Negative pressure combustion	Negative pressure combustion	Negative pressure combustion
Main steam pipe (mm)	DN150-DN300	DN150-DN300	DN150-DN300
Feed water pipe (mm)	DN50-DN80	DN50-DN80	DN50-DN80
Drain pipe (mm)	DN50	DN50	DN50
Safety valve diameter (mm)	65+80 to 125+150	65+80 to 125+150	65+80 to 125+150

Biomass Thermal Oil Heater Series – Parameters and Specifications

UPA Thermal offers a range of biomass-fired thermal oil heaters for industrial applications. All models are designed for global export, ensuring clients receive high-quality boilers directly from the manufacturer.

Parameter	Biomass Gasification Thermal Oil Heater	Biomass-fired Chain Grate Thermal Oil Heater	Biomass-fired Reciprocating Grate Thermal Oil Heater
Model	YLW-4100SII to YLW-25000SII	YLW-4100SII to YLW-25000SII	YLW-4100SII to YLW-25000SII
Heating capacity (×10⁴ kcal/h)	350/600/900/1200/1600/2200	350/600/900/1200/1600/2200	350/600/900/1200/1600/2200
Thermal power (MW)	4.1/7/10.5/14/19/25	4.1/7/10.5/14/19/25	4.1/7/10.5/14/19/25
Design pressure (MPa)	1.1	1.1	1.1
Max. operating temperature (°C)	320	320	320
Design efficiency (%)	85.5/88/88/88/88/88	85.5/88/88/88/88/88	85.5/88/88/88/88/88
Medium circulation (m³/h)	260/520/800/1000/1000/1300	260/520/800/1000/1000/1300	260/520/800/1000/1000/1300
Main oil pipe (mm)	DN200 to 2×DN400	DN200 to 2×DN400	DN200 to 2×DN400
Applicable fuel	Biomass gas (LCV ≥1,280 kcal/kg)	Biomass gas (LCV ≥1,280 kcal/kg)	Biomass gas (LCV ≥1,280 kcal/kg)
Combustion type	Negative pressure combustion	Negative pressure combustion	Negative pressur

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