www.phcppros.com/articles/10340-navien-begins-shipping-npn-series-premium-non-condensing-tankless-water-heaters

Navien Begins Shipping NPN Series Premium Non-Condensing Tankless Water Heaters
October 21, 2019
Navien’s new premium non-condensing (NPN) tankless water heaters are being installed almost as quickly as they are shipped. NPN tankless water heaters are currently available in a universal indoor/outdoor model (NPN-Universal) in sizes 180,000 BTU/H and 199,900 BTU/H or an exterior, outdoor-only model (NPN-Exterior) in sizes 180,000 BTU/H and 199,900 BTU/H. The NPN is available for order now.
More information about NPN series non-condensing tankless water heaters can be found at www.navieninc.com.