1990’s - Nationwide Boiler selected selective catalytic reduction (SCR) technology as the answer to NOx compliance. SCR technology was the most economical, efficient, reliable and easy to operate solution, capable of easily exceeding 9 ppm NOx limits to as low as 5 ppm.
October 1999 - Nationwide Boiler was the first rental boiler company to conduct a SCR field demonstration on a packaged watertube boiler, later to be branded and trademarked as the CataStak™ SCR System.
1999 - Nationwide Boiler offers the CataStak™ SCR system on their rental watertube boilers.
2004 - Nationwide Boiler expands the product offering of the CataStak™ SCR system to include boiler retrofits and new boiler installations to meet sub-9 ppm NOx levels.
2008 - Nationwide Boiler expands its role as the low NOx solutions provider with the introduction of the company’s new business unit, Nationwide Environmental Systems (NES). NES is formed to address and supply industry wide needs for complete Green House Gas plant solutions through innovative, low NOx air pollution control solutions for package boilers, gas turbines, fired heaters, heat recovery steam generators, and other fired equipment applications.
2009 - First CataStak SCR system supplied by Nationwide Boiler for 1 MW gas turbine.
2010 - Nationwide supplies more package boiler SCR system retrofits/installations than any other supplier in the industry.
2011 - Nationwide Boiler developed the Ammonia-Free CataStak™ SCR system for firetube boilers. This safe, low NOx SCR solution provides >90% NOx reduction and eliminates the need for boiler operators to store or handle ammonia.
2012 - Nationwide provides the first CataStak SCR system for a fired heater application.
2013 - The Ammonia-Free CataStak™ is expanded to operate with packaged watertube boilers.
Today - Nationwide Boiler supplied CataStak™ SCR systems lead the industry with the best track record in terms of performance and reliability, exceeding current local, regional or national emission regulations and requirements. NOx reductions and ammonia slip are reduced by up to 99%.