Lochinvar Recalls Condensing Boilers Due to Risk of Carbon Monoxide Poisoning
Home product recall 24-018. Announced by CPSC on Nov 2, 2023.
Watch and the shortlist are kept with a free account, on every device. Your watch list. CPSC’s own notice is on cpsc.gov.
The short answer
Announced by CPSC on Nov 2, 2023. Copied from CPSC on Oct 19, 2026.
- Repair what’s offered
- About 17, 370 (In addition, about 782 units were sold in Canada) units, as CPSC gives them
- Reported injuries, in the notice (needs attention)
Every line below is in CPSC’s own words, with its source beside it.
What’s wrong with it?
The boiler’s flue collector can crack if exposed to a high impact event in the burner chamber, which can allow the boiler to emit carbon monoxide, posing a risk of carbon monoxide poisoning.
CPSC, Recalls API. Checked Oct 19, 2026. Updated daily.
What should you do?
Consumers with the recalled boilers should immediately contact the installer or a qualified technician to schedule a free repair. The repair will consist of installing a steel plate, which will be affixed to the base of the flue collector to act as a reinforcement. Consumers who continue use of the boilers while awaiting repair should have working carbon monoxide alarms outside of sleeping areas and on each floor of the home.
CPSC, Recalls API. Checked Oct 19, 2026. Updated daily.
- What the company offers to fix a recalled product or vehicle: a repair, a replacement or a refund, as the recall notice says. For a vehicle, dealers make the safety repair free. Follow the notice’s own steps, or contact the company it names. Source: CPSC; NHTSA (49 U.S.C. 30120).: repair.
- How to reach the firm: Lochinvar toll-free at 833-232-9706 from 8 a.m. to 8 p.m. ET Monday through Friday or online at www.lochinvar.com and click on “Recall Notices” at the bottom of the page. Consumers can also check for the recalled boilers’ serial number at: www.waterheaterrecall.com, and select the look-up feature for the flue collector recall. Consumers with Lochinvar-branded boilers can find a qualified service technician by visiting: http://green.lochinvar.com/support/contractorlocator.aspx. Consumers with A.O. Smith or State Industries-branded boilers should contact their installer. Consumers who do not know their installer can contact Lochinvar toll-free at 833-232-9706 or email the firm at recallinfo@lochinvar.com.
Which ones are recalled?
This recall includes residential condensing boilers, combi boilers and packaged systems sold by Lochinvar from August 2021 through August 2023. They were sold under the Lochinvar, A. O. Smith, and State Industries brand names and have serial numbers within the range of 125325485 through 134830284. The brand name is printed on the front of each unit. The model number and serial number can be found on the data plate on the product located on the unit’s rating plate, which is located either on the inside or outside of the outer jacket of the unit. The following brands and model numbers are included in the recall. Lochinvar Brand NCF110L NCF110N NCF150L NCF150N NCF199L NCF199N NKB080L NKB080N NKB110L NKB110N NKB150L NKB150N NKB199L NKB199N NKC110L NKC110N NKC150L NKC150N NKC199L NKC199N A. O. Smith Brand ACB 110H-N ACB 110H-P ACB 110S-N ACB 110S-P ACB 150H-N ACB 150H-P ACB 150S-N ACB 150S-P ACB 199H-N ACB 199H-P ACB 199S-N ACB 199S-P State Industries Brand SCB 110H-N SCB 110H-P SCB 110S-N SCB 110S-P SCB 150H-N SCB 150H-P SCB 150S-N SCB 150S-P SCB 199H-N SCB 199H-P SCB 199S-N SCB 199S-P
About 17, 370 (In addition, about 782 units were sold in Canada) units, as CPSC gives them.
Lochinvar, A.O. Smith and State Industries brand condensing residential boilers.
CPSC, Recalls API. Checked Oct 19, 2026. Updated daily.
CPSC’s photos
CPSC shows 5 photos on its notice. Hearth Record doesn’t copy them; each opens on cpsc.gov.
Who made and sold it?
- Made by Lochinvar LLC, Lebanon, Tennessee.
- Independent contractors, plumbers, and plumbing supply vendors and distributors from August 2021 through September 2023 for between $4,000 and $10,000, including installation. A limited number were sold to original equipment manufacturers who modify and use the boilers in integrated in-floor heating systems.
- Made in United States, as the notice gives it.
CPSC, Recalls API. Checked Oct 19, 2026. Updated daily.
Was anyone hurt?
Lochinvar has received nine reports of broken flue collectors. Lochinvar has received no reports of injury.
CPSC, Recalls API. Checked Oct 19, 2026. Updated daily.
What the record doesn’t say
- The notice lists no UPCs, so check the model, the description and the photos.
- The notice lists no model numbers in a field of their own; its description may give them.
- How many have been returned or fixed isn’t in the notice.
Hearth Record wrote these lines.
Sources
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U.S. Consumer Product Safety Commission, Recalls API.
Checked Oct 19, 2026. Updated daily. Public domain (U.S. Government work). CPSC asks to be credited, and that no endorsement be implied.
Recalls of kids’ and home products are from the U.S. Consumer Product Safety Commission (CPSC). CPSC does not endorse Hearth Record. Copied on Oct 19, 2026.