Sizes to Fit All Environments Demanding conditions call for reliable equipment. Patterson-Kelley's newest stainless steel condensing boiler family just got bigger! The PK StormĀ® line up now includes 4 new model sizes, 2500, 3000, 3500 and 4000. With a mechanical turndown of 10:1 and the NURO Control maximizing system efficiencies, The Storm provides an innovative and intuitive heating solution for any application. And now, with 8 sizes in the family to choose from, there just might be a Storm in your forecast. Patterson-Kelley, LLC www.pattersonkelley.com * 877.728.5351http://www.pattersonkelley.com