Navien continues to receive accolades for its products with the latest recognition being AHR Expo’s 2015 Innovation Award in the plumbing sector. In addition to the newly announced Innovation Award for the Navien Premium Efficiency-Standard tankless water heaters with an Energy Factor rating of 0.99, Navien won the same award in January 2013 for its Navien Premium Efficiency-Advanced tankless water heaters with exclusive ComfortFlow technology featuring pump and buffer tank included, as well as an efficiency of 0.97 EF.