Navien product recalls
2 CPSC recalls since 2010.
Navien · Electrical & batteriesNavien condensing tankless water heaters and combination boilersA kit installed on the tankless water heaters and boilers to convert them from natural gas to propane can cause the unit to…CO poisoning hazardPoisoning hazardReplace3,400unitsDec 2018
Navien · Electrical & batteriesNavien Instantaneous or Tankless Water HeatersAn unstable connection can cause the water heater's vent collar to separate or detach if pressure is applied.CO poisoning hazardPoisoning hazardRepair13KunitsDec 2011