The United States Consumer Product Safety Commission (CPSC) announced that Navien has recalled approximately 3,400 tankless water heaters and boilers due to the risk of carbon monoxide poisoning. The CPSC's website states that "A kit installed on the tankless water heaters and boilers to convert them from natural gas to propane can cause the unit to produce excessive amounts of carbon monoxide, posing a risk of carbon monoxide poisoning to consumers."
This recall involves only Navien condensing tankless water heaters and combination boilers with model numbers NPE-180A, NPE-180S and NCB-180E that have been or will be converted from using natural gas to propane gas. The recalled water heaters and combination boilers were manufactured between July 9, 2018 through October 14, 2018. The manufacturing date is identified within the serial number. The serial number is printed on a label which is affixed to the side of the unit and on the product packaging. The first two digits identify the year, the next single digit identifies the month, and the last two digits identify the day. For example, 18709 stands for July 9, 2018. X stands for October.
The CPSC recommends that consumers immediately stop using the recalled water heaters and boilers use propane gas and contact Navien for a free replacement conversion kit. Please visit the CPSC recall page for full details of the recall and what steps you should take to protect yourself.
If you or your family has been injured by the use of a Navien Tankless Water Heater or Boiler, please contact Montgomery & Ponder, LLC at (205) 377-5004.