Introducing the P-K SOLIS™ Patterson-Kelley's First Firetube Boiler Sorry, Old Man Winter - The P-K SOLIS™ vertical firetube boiler leads Patterson-Kelley into the condensing firetube market. This top of the line, highly efficient condensing boiler is designed to maximize comfort without sacrificing savings. Each P-K SOLIS™ model features a unique geometric design that optimizes heat transfer, resulting in efficiencies up to 96%, 10:1 mechanical turndown, and ultra-low NOx emissions. It is specially equipped to battle the harsh winter months without breaking the bank. Patterson-Kelley, LLC www.pattersonkelley.com ¥ 877.728.5351http://www.pattersonkelley.com