Navien Lawsuit


Hot Water, Cold Reality: The Navien Lawsuit Explained

Imagine stepping into a steaming shower, only to be greeted with a lukewarm trickle. Frustrating, right? Well, for some Navien tankless water heater owners, that’s been their reality, along with a growing concern about a potential safety hazard.

Here’s the deal: A lawsuit, Diack et. al. v. Navien, Inc., was filed in 2022 against Navien, alleging certain tankless water heater models suffer from faulty exhaust systems [1]. The lawsuit claims these defects can lead to leaks, which, in the worst-case scenario, could release harmful carbon monoxide into your home. Carbon monoxide is odorless and colorless, so a leak could go unnoticed, posing a serious health risk.

Now, before you hit the panic button, it’s important to understand a few things. First, the lawsuit applies to specific models and manufacturing dates, not all Navien water heaters. Second, there haven’t been any widespread reports of injuries or illnesses linked to Navien units.

That said, it’s always better to be safe than sorry. If you’re a Navien owner, here’s what you can do:

Identify your unit: Check the model number and manufacturing date on your water heater. You can find this information on a label typically located near the base of the unit.
Compare it to the lawsuit: Unfortunately, there isn’t a central online database to definitively say if your unit is affected. However, contacting Navien directly with your model and date information is a good first step.
Stay informed: Keep an eye on news articles or consumer protection agency websites for updates on the lawsuit’s progress.

Remember, even if your unit isn’t part of the lawsuit, regular maintenance is crucial for any gas appliance. Schedule annual checkups with a qualified technician to ensure your water heater is operating safely and efficiently.


While the legalities of the Navien lawsuit are ongoing, it highlights the importance of being proactive about your home’s safety. By staying informed and taking the necessary precautions, you can ensure your hot water stays hot, and your peace of mind stays even hotter.


Is my Navien water heater safe?

It depends on the model and manufacturing date. Contact Navien to check.

What are the symptoms of carbon monoxide poisoning?

Headache, nausea, dizziness, and fatigue are all possible signs. If you suspect a leak, evacuate your home immediately and call 911.

How can I prevent carbon monoxide poisoning?

Install carbon monoxide detectors in your home and have them serviced regularly.

What should I do if my Navien water heater is leaking?

Turn off the gas supply to the unit and contact a qualified technician immediately.

Can I join the Navien lawsuit?

The lawsuit is currently ongoing. Consulting with an attorney specializing in class action lawsuits is recommended.

Where can I find more information about the lawsuit?

Legal information websites like Justia Dockets offer case summaries, but official updates would likely come from the court or the parties involved [1].


Diack et. al. v. Navien, Inc. | Justia Dockets: [invalid URL removed]

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