Since 1967, Nationwide Boiler has built a strong reputation as a leading provider of rental boilers, offering dependable and innovative solutions to support industrial operations during scheduled outages andemergency situations. With over 100 boilers strategically located across the U.S., we offer an extensive range of equipment with a fleet of more than 7-million pounds-per-hour of steam capacity and boilers ranging from 47.5 hp to 270,000 lb/hr. This includes mobile package watertube boilers, complete mobile boiler rooms, skid-mounted boilers, and auxiliary equipment systems, ensuring flexibility and reliability for all your steam needs.

Comprehensive Boiler Solutions

At Nationwide Boiler, we’ve expanded beyond our traditional boiler rentals to provide comprehensive products and solutions designed to meet the unique needs of industrial facilities:

• In-Stock New and Used Boiler Equipment
• Custom PLC-based Boiler Control Systems and Aftermarket Boiler Room Parts
• Sustainable Technologies including CataStak™ SCR Systems,  ultra-low NOx burners, and heat pumps

Stock Boilers and Equipment for Fast Delivery

In addition to our well-known rental fleet, Nationwide Boiler maintains a strong in-stock program for new and reconditioned boiler equipment. With inventory staged at our facilities in California and Texas, we can provide quick-ship solutions to customers across the country, minimizing downtime and helping plants avoid long manufacturing lead times. Our stock includes a range of firetube and watertube package boilers, burners, and auxiliary equipment, ready for immediate shipment to meet both planned and emergency needs.

As an exclusive representative for several industry-leading manufacturers, we regularly stock equipment from Babcock & Wilcox, Hurst Boiler, and Oilon. This includes B&W watertube package boilers, Hurst firetube boilers, and Oilon ultra-low NOx burners, among other high-quality equipment. By combining trusted brands with our own rigorous inspection and readiness processes, Nationwide Boiler ensures customers have reliable, proven solutions available when time, performance, and reliability matter most.

Custom PLC-Based Boiler Control Systems

Nationwide Boiler has grown far beyond its origins as a rental boiler company, evolving into a complete solutions provider for steam generation and plant efficiency. A key part of that expansion is our dedicated Controls Division, which specializes in the design and manufacture of custom, PLC-based boiler control panels. These advanced systems provide operators with precise, reliable control over boiler operation, improving efficiency, safety, and ease of use.

Our UL-certified facility in Washougal, Washington, serves as the hub of this expertise. From this location, our team engineers and assembles control systems that meet the highest industry standards, supporting customers not only in the Pacific Northwest but across the country. Whether it’s a simple upgrade or a fully integrated control package, Nationwide’s Controls Division delivers solutions that align with our commitment to innovation, reliability, and long-term customer success.

Pioneering Ultra-Low NOx Technology

At Nationwide Boiler, we’ve been at the forefront of reducing harmful emissions in the steam generation industry. Our journey began in the 1990s with the introduction of the CataStak SCR system, a game-changer in NOx and CO emissions control. The CataStak has demonstrated the ability to reduce emissions to single-digit levels, reaching as low as 1 ppm NOx in some cases. This technology is proven and applicable for package boilers, fired heaters, and gas turbines across a wide range of applications.

For industries that require ultra-low NOx emissions without SCR technology, we offer mobile boiler rooms and firetube boilers equipped with single-digit ultra-low NOx burners. These systems meet stringent air quality regulations in regions such as California and Texas, ensuring compliance with local emissions standards.

Driving Decarbonization with Alternative Fuels

As the world moves toward a cleaner energy future, Nationwide Boiler is committed to providing alternative fuel solutions. Our offerings include electric boilers, heat pumps, and compatibility with alternative fuels, options that are crucial for reducing carbon footprint and achieving long-term sustainability.

• Electric Boilers are an excellent zero-emissions solution for high-pressure steam generation. With nearly 100% efficiency, these boilers convert electricity into steam, making them ideal for industrial facilities looking to eliminate NOx emissions from their boiler systems. Whether for temporary or permanent use, we offer electric boiler packages that integrate seamlessly into existing infrastructure.
• Heat Pumps provide a low-carbon solution for industrial applications. Although traditionally used for comfort heating, heat pumps can now be leveraged beyond the traditional applications. While they are currently limited to temperatures up to 240°F, heat pumps offer energy savings by consuming one-third of the energy compared to traditional heating systems.
• Hydrogen & Biofuels represent key alternatives to natural gas and fuel oil. Nationwide Boiler has successfully demonstrated the ability of our existing rental watertube boilers operating successfully on hydrogen blends of up to 20% without modifications to the system. This flexibility is thanks to our robust construction standards, ensuring compatibility with alternative fuels.

A Legacy of Reliability and Innovation

With more than six decades of experience, Nationwide Boiler continues to be a leader in providing both temporary rental boilers and sustainable steam solutions. Our commitment to innovation, quality, and customer satisfaction has made us a trusted partner for industrial clients across the country.

With a legacy is built on integrity, dependability, and a passion for advancing clean steam generation technologies, Nationwide Boiler remains dedicated to evolving with the ndustry and helping our customers reduce their environmental impact.

For more information on our rental boilers and sustainable steam solutions, visit nationwideboiler.com or call (800) 227-1966.

With over 50 years of experience in the boiler industry, Nationwide Boiler has completed numerous successful projects providing temporary rental boiler equipment, new and reconditioned boilers, our CataStak SCR system for ultra low NOx compliance, and efficiency enhancing solutions. Check out our library below for various project case studies.

	Temporary Boiler Projects Boiler Equipment Takes Middle Eastern Voyage for Excess Steam Supply Coal to Natural Gas Conversion at Duke University Emergency Mobile Feedwater System Eases Catastrophic Event Emergency Steam Plant Allows Operations to Continue High Pressure Superheat Rental Boiler During Oil to Gas Conversion Rapid Response & On-Site-Support Meet Emergency Requirements Short-Term Boiler Rentals Provide Cost-Effective Solution Superheat, Low NOx Boiler Used for Start-up Temporary Steam Plant Provides Relief During Post Wildfire Assessment Temporary Steam Plant Keeps Mill Operating During Boiler Changeover Temporary Steam Plant Provides Uninterrupted Service
	Boiler Equipment Sales Addition of Package Boiler Ensures Meeting Contractual Obligations New 110Kpph Superheat Boiler Provides Increased Steam Capacity New 200Kpph Boiler & CataStak SCR Helps Refinery Lower Emissions New Boiler Installation Increases Process Plant Production Replacing Brick-set Boilers with Ultra Low NOx Package Boiler Self-contained Transportable Steam Plants for U.S. Navy
	Emissions & Efficiency Solutions Ammonia-Free CataStak SCR Innovation Ammonia-Free CataStak SCR - Cogeneration - Auxiliary Boilers BPS Upgrade Yields Energy Savings, Decreased Emissions CataStak SCR System & Burner Upgrade Helps Achieve Steam Reliability CataStak SCR System Retrofit Simplifies Consent Decree Compliance CataStak SCR System Upgrade & BPS Rental Boiler Solution CataStak SCR System Upgrade Demonstrates Near Zero NOx Emissions E2Stak System Achieves Ultra Low NOx Emissions & High Efficiency Emissions Upgrades to Achieve ROIFuture NOx Compliance - Burners vs. SCRs Ultra Low NOx Emissions and Improved Efficiency with E2Stak Solution
	Miscellaneous Build, Own, Operate & Maintain Program Supporting an Engineering Services Contractor

Nationwide Boiler is a leading supplier of ultra low NOx solutions for the package boiler industry and beyond. Our CataStak SCR system has been installed in over 200 applications and has been proven to reduce NOx emissions by as much as 99%. We also offer ultra low NOx burner solutions and emissions compliance assistance for California boiler owners facing the most stringent requirements in the country. Contact us today to learn more: 800-227-1966

Check out our common conversions calculator for quick emissions calculations, too!

 Example: NOx = 0.15 lbs/mmbtu firing natural gas
                NOx in ppm = 0.15 x 833 = 125 ppm

Here you will find a variety of educational and technical resources available from Nationwide Boiler Inc. This information is geared at assisting our clients through the process of selecting the right equipment for a variety of applications. In addition, you can utilize our common conversions calculator to help you quickly convert units of measure, emissions, or boiler capacity, as well as our conversion calculators for saturated steam properties, superheated steam properties, and water properties.