Steam Boiler Systems


Wellons Biomass Steam Boiler System
Freres Lumber - Evergreen Biopower, LLC

Biomass Steam Boilers

Wellons has designed, manufactured, and installed hundreds of biomass boiler systems for small applications requiring process steam as well as large systems such as electrical generation and co-generation. ASME certified Package, Panel, and Field-Erected boiler systems of Wellons’ design are available, depending on the capacity, pressure, and steam temperature requirements of the customer.

In addition to our engineering and manufacturing capabilities, Wellons also offers installation of our systems in the USA, and technical assistance with installation and commissioning for our international projects.




Wellons Field Erecrted Biomass Boiler System
Wellons Field Erected Biomass Steam Boiler System

Boiler Types


1-Drum Top-Supported Spreader-Stoker Vibrating-Grate 350,000-PPH

Two-Drum Top Supported Boilers

Our two-drum open bottom boiler design includes single gas pass, water-cooled membrane wall furnace with natural circulation, with a maximum design pressure of 1,800 psig.

Multiple combustor configurations are available including reciprocating step-grates, spreader stoker, vibrating or traveling, or suspension burners. These furnaces can co-fire with solid fuel suspension and oil/gas as well. These boiler and furnace configurations satisfy the industrial boiler market being capable of burning a variety of agri-fuel including poultry litter.

Wellons Field Erected Biomass Boiler Wellons Field Erected Biomass Boiler

1-Drum Top-Supported Spreader-Stoker Vibrating-Grate 350,000-PPH

Single-Drum Top-Supported Boilers

Our single-drum top-supported boiler designs include completely welded water-cooled membrane water wall furnaces and modular tube bundle superheater and generating sections with a maximum design pressure up to 1,800 psig. Multiple solid-fuel combustor types are available depending on specific fuel characteristics and air emission limits including spreader stokers (vibrating or traveling) or suspension burners. These furnaces can co-fire a mix of solid fuels on the grate along with dry solid-fuel suspension fired burners and auxiliary burners firing oil/gas as well. These boiler and furnace configurations satisfy the large industrial and small central power generation station boiler market being capable of burning a variety of biomass solid-fuels, agri-fuels including poultry litter.

Wellons Field Erected Biomass Boiler Wellons Field Erected Biomass Boiler

Wellons Biomass Field Erected Steam Boiler Illustration

Field Erected Boilers

Our field-erected boilers, designed to be fired by a multiple Wellons cell furnace system, provides greater steam flow, higher pressure, and the higher temperatures needed for power plants and other operations requiring large steam capacities.

Wellons Field Erected Biomass Boiler Wellons Field Erected Biomass Boiler Wellons Field Erected Biomass Boiler Wellons Field Erected Biomass Boiler

Wellons Package Boiler Illustration

Package Boilers

The package boiler combines firetube and watertube designs in a completely factory assembled unit. This philosophy is also applied to the boiler support equipment where components are combined in shop-assembled modules. The package design provides for a minimum of field assembly for processes with relatively small steam requirements.

Wellons Package Boiler Wellons Package Boiler Wellons Package Boiler

Wellons Panel Boiler Illustration

Panel Boilers

Our panel boiler is engineered for factory pre-assembly of major components to reduce installation time. The design is specifically tailored for compatibility with the Wellons cell furnace, assuring optimum system performance.

Wellons Panel Boiler Wellons Panel Boiler

Related Systems


Combined Heat & Power

If your goal is to produce green clean energy from biomass, then your source is Wellons. Wellons stable of combustion technologies can convert wet or dry wood biomass fuel and the heat can be delivered directly to user i.e. dryers; or produce thermal oil, steam or hot water.

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Electrical Power Generation

Eagle Valley Clean Energy, LLC

Electrical Power Generation Systems »

Eagle Valley Clean Energy

Wellons is uniquely qualified to handle all aspects of your electrical generation project. With more than 50 years experience in steam generation systems, we engineer and manufacture a full line of proprietary equipment to burn biomass fuels for the forest products industry.

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