Navien America Company Profile 20 GoodyearIrvine, CA 92618 Products Gas-condensing Tankless Water Heater Company Product Navien America Inc.’s NPE Series of premium gas-condensing tankless water heaters use existing 1/2-inch gas lines and flue chases to ease the installation process. Product • December 10th, 2012 Condensing Tankless Gas Water Heater Company Product Navien America Inc. has released its Condensing Tankless Gas Water Heater, which boasts 98 percent efficiency. Its dual stainless-steel heat exchangers are resistant to erosion and operate with... Product • November 11th, 2011 Want to know more about this company? Click here to request more information about Navien America .