Nationwide Boiler Inc. has successfully completed two major boiler projects for leading food processing facilities in California. The company met both critical steam capacity demands and strict emissions standards. As a result, both systems passed formal compliance source testing with exceptional performance. These outcomes further strengthen Nationwide Boiler’s position as a provider of proven ultra-low NOx solutions that meet California’s stringent regulations and emerging national standards.
Custom Firetube Boiler Enhances Capacity and Stability
In the first project, Nationwide Boiler installed a custom 300 HP, 150 psig Hurst firetube boiler equipped with an Oilon ultra-low NOx burner. Additionally, the company supplied a new feedwater system and a blowdown separator. This upgrade not only increased steam capacity but also stabilized the facility’s aging steam plant.
The system delivered impressive emissions results. It achieved average NOx emissions of just 3.1 ppm and less than 2 ppm CO output (corrected to 3% O2). Moreover, the boiler reached a 3:1 turndown ratio. The team is currently implementing enhancements to achieve a 4:1 turndown ratio, which will further improve efficiency and operational flexibility.
Advanced SCR System Achieves Industry-Leading Performance
Meanwhile, the second project featured an in-stock 180,000 lb/hr Babcock & Wilcox (B&W) package watertube boiler. Nationwide Boiler integrated this unit with its CataStak™ Selective Catalytic Reduction (SCR) system to deliver ultra-low NOx emissions.
As per press release, the CataStak system has already been deployed in over 250 applications worldwide and consistently achieves single-digit NOx emissions, with guarantees as low as 2.5 ppm. At the California facility, the fully integrated boiler package was installed and commissioned successfully.
Source testing revealed outstanding results, including average NOx emissions below 1.5 ppm, CO emissions under 1 ppm, and ammonia slip below 3 ppm (corrected to 3% O2). Notably, these figures exceed the most stringent air district requirements in the United States. At the same time, the system provides improved efficiency, higher steam capacity, and full compliance with the San Joaquin Valley Air Pollution Control District’s 2029 regulations.
Leadership Highlights Proven Solutions
Jim Lieskovan, Vice President of Sales at Nationwide Boiler, emphasized the company’s capabilities. He stated that these projects demonstrate Nationwide Boiler’s ability to deliver both custom-engineered systems and rapidly deployed in-stock equipment that meet today’s strict emissions and performance requirements.
He further noted that solutions such as the CataStak SCR system and Oilon’s ultra-low NOx burners enable the company to support California’s food industry and global customers. These technologies ensure compliance with current standards while preparing facilities for increasingly stringent future regulations.
Growing Demand for Ultra-Low NOx Solutions Nationwide
California continues to enforce the most rigorous emissions standards in the United States. Consequently, industrial facilities across the country—from the Gulf Coast to the Northeast—are facing tighter air quality regulations. This trend is driving demand for reliable, ultra-low NOx technologies.
Through these two projects and numerous others, Nationwide Boiler continues to strengthen its role as a trusted partner. The company provides modern, emissions-compliant steam solutions that deliver high performance, reliability, and availability without compromise.






























