In many industries, heat is a crucial component of various processes. For a time, pellet burners were the go-to solution for industries transitioning from diesel burners. They offered a substantial cost reduction—up to 50%—and were compatible with existing systems. However, as the prices of pellets have almost doubled in recent years, businesses are searching for more cost-effective alternatives. Enter Steamax’s Multi-Fuel Burner (MFB), a versatile solution designed to accommodate a broader range of biomass fuels, thereby reducing carbon footprints and fuel costs.
Why Pellet Burners Are Losing Popularity
Pellet burners were initially celebrated for their ability to replace diesel burners efficiently. However, they come with limitations:
- Limited Fuel Compatibility: Pellet burners are design to burn pellets of specific sizes and materials, usually sawdust pellets with a 6-8mm diameter diameter. Due to this design constraint, other fuels cannot be burned efficiently.
- Feeding Issues: The design of the burner and hopper restricts feeding any fuel other than the specified pellets. If pellets larger than 8mm are used, the feeder stops working due to the smaller pitch and screw diameter.
- Increased Carryover: Pellet burners maintain the same height between the screw conveyor and the burner nozzle. When small-sized fuels are introduce, they are directly thrown to the nozzle, increasing the carryover of unburnt fuel particles.

Steamax’s Multi-Fuel Burner: A Flexible Approach
At Steamax, we believe in flexibility. There are better approaches than binding customers to a specific fuel type. Industries should have the freedom to choose their fuel. We developed the Multi-Fuel Burner (MFB), a more versatile and cost-effective solution.
Here’s how we’ve improved upon the limitations of traditional pellet burners:
- Enhanced Hopper Design: We adjusted the hopper angle to allow the free flow of various materials, such as dried wood chips, walnut shells, and our proprietary fuel blend, Astillas, which have higher wall resistance.
- Upgraded Feeder System: The feeder’s diameter and pitch are increase to accommodate the low bulk density of other biomass fuels, ensuring a more consistent and efficient fuel feed.
- Innovative Biomass Blend: We introduced Astillas, a new biomass fuel blend with a higher calorific value than traditional pellets. Astillas is also more cost-effective, providing significant savings for industries.
- Improve Burner Nozzle Design: The burner nozzle’s centre height is increased to prevent the carryover of unburnt fuel particles, enhancing the combustion process’ efficiency.
As industries continue to seek out more cost-effective and sustainable heating solutions, traditional pellet burners are losing their appeal. Steamax’s Multi-Fuel Burner (MFB) provides a flexible, efficient, and cost-effective alternative that accommodates a wide range of biomass fuels, including our high-calorific blend, Astillas.
Don’t let pellet burners’ limitations hold your business back. Switch to Steamax’s Burner today and enjoy reduced fuel costs, greater efficiency, and environmental responsibility.
Check out our video to see MFB in action.



