Independent reference · Facts sourced from CPSC, ENERGY STAR and DOE Record verified Aug 18, 2026
Active recall — stop using this product now.
Remedy: free replacement · About 3,400 units
HVAC & water heaters Recall No. 19-057 Published December 20, 2018

Navien condensing tankless water heaters and combination boilers

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. Manufactured by Kyung Dong Navien Co. Ltd and sold at Wholesale distributors to installers nationwide from August 2018 – October 2018 for about $1,400.

Navien Condensing Tankless Water Heater
What you are looking at

Navien Condensing Tankless Water Heater

Image: CPSC recall notice Two more views

Check the label first

Compare every letter, number, space and suffix. A similar-looking product with a different suffix may not be part of this recall.

Affected model numbers
UPC codes
884954974101 884954974194 884954966083

Why it was recalled

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.

0
Incident reports to the firm
0
Injuries reported
0
SaferProducts.gov reports

None

The official remedy

Remedy type: replace
01
What to do

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.

Product and sales details

ManufacturerKyung Dong Navien Co. Ltd, South Korea
UnitsAbout 3,400
Made inSouth Korea
Sold atWholesale distributors to installers nationwide
Sales periodAugust 2018 – October 2018
PriceAbout $1,400

How to reach the firm

Phone
800-244-8202
8 a.m. to 5 p.m. PT or e-mail recall@navien
Email

Verify phone numbers, hours and web addresses on the current CPSC notice before contacting the firm.

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