Navien is recalling about 3,400 condensing tankless water heaters and combination boilers, models NPE-180A, NPE-180S, and NCB-180E. These units were manufactured between July 9, 2018 and October 14, 2018 and were sold by wholesale distributors nationwide. The recall is due to a defect in the conversion kit used to switch the units from natural gas to propane, which can lead to the production of dangerous levels of carbon monoxide. Navien is providing a free replacement conversion kit to resolve the safety issue.
The gas conversion kit can cause the unit to produce excessive amounts of carbon monoxide, which is an odorless, colorless gas. This poses a significant risk of carbon monoxide poisoning to residents, though no injuries or incidents have been reported to date.
Consumers should immediately stop using the recalled water heaters and boilers that are using propane gas and contact Navien for a free replacement conversion kit. Consumers who continue use of the water heaters and boilers while awaiting repair, should have a working carbon monoxide alarm installed outside of sleeping areas in the home.
Navien Condensing Tankless Water Heater
Navien Condensing Combination Boiler
Serial number location
If you or a family member were harmed by this recalled product, you may have legal rights. Consider consulting a consumer protection attorney to understand your options for compensation.
This is general information, not legal advice. Go Backs is not a law firm and does not provide legal services.
AI-Enhanced Content: The summary, action steps, and risk assessment on this page were generated by AI from official government recall data to improve readability. This is not legal or medical advice. Always refer to the official agency sources below for authoritative information.
Sources: CPSC Notice · Raw API Response