The #1 brand in high efficiency condensing tankless water heaters, combi-boilers, and wall-hung boilers. Official ENERGY STAR ... ® partner. Navien products are available in the United States and Canada through a selected network of wholesale distributors. Visit our website at navieninc.com or call (800) 519-8794 for more information. Since 2006, Navien, Inc. has become one of the fastest-growing companies in the home comfort sector in North America, providing high-efficiency tankless water heaters, combi-boilers, and boilers. Navien's products possess state-of-the-art technology, high efficiency, and reliable quality. Navien has achieved international recognition for its sophisticated engineering and robust designs. Backed by parent company, KD Navien with more than 40 years of experience with advanced boiler and water heating technology, Navien will continue its mission to provide high-quality products. read more