Every recall we track for Kyung Dong Navien Co. Ltd, South Korea — 2 in all — plus the complaints and injury reports the public filed about them.

Navien recalls tankless water heaters and boilers with model numbers NPE-180A, NPE-180S, and NCB-180E that were converted from natural gas to propane. These units risk carbon monoxide poisoning if not properly maintained.

Navien recalls tankless water heaters from 2008 with model numbers CR-180(A) through CC-240(A) due to carbon monoxide poisoning risk from vent collar detachment. Consumers must stop using and contact Navien for free repair.