This event will mark the introduction of Navien's latest breakthroughs in tankless water heaters, boilers, and an entirely new product category.

By limiting turndown to 5:1, Patterson-Kelley can maintain the dewpoint as high as possible, which allows for greater condensation.

The boilers utilize a hydrophobic-coated, finned stainless steel heat exchanger to work in concert with the existing high-efficiency cast-iron heat exchanger.

The Aspen and Aspen Light commercial condensing boilers feature a 10:1 turndown ratio, efficiencies of up to 96 percent AFUE, and boast low emissions. With a stainless steel, vertical, firetube heat exchanger, the Aspen line includes seven sizes between 85-399 MBtuh, with a 155-MBtuh combi unit available.