Ariston Recalls 4,726 NTI and HTP Gas Boilers Over Cracked Condensate Dishes
The recall covers 4,726 boilers sold in the U.S. and 2,261 in Canada from May 2021 on, at $3,200 to $7,700. Ariston has 34 reports of broken condensate dishes, three with the front cover detaching. One technician suffered a broken jaw.
Ariston is recalling 4,726 NTI and HTP residential gas boilers because the condensate dish inside the cabinet can crack during a delayed ignition, the U.S. Consumer Product Safety Commission said Oct. 29. Another 2,261 were sold in Canada under a joint recall with Health Canada.
When the dish cracks, unburned gas can build up inside the sealed cabinet. If it ignites, "the front cover can suddenly detach, posing a risk of serious injury or death from fire, carbon monoxide (CO) poisoning, and impact hazards," the CPSC notice says.
Ariston has received 34 reports of a broken condensate dish, including three in which the front cover came off. In one, the technician servicing the boiler suffered a broken jaw. Health Canada's notice, current to Oct. 16, places the one injury in Canada and lists a single U.S. incident with no injuries.
- NTI FTVN150, FTVN150C, FTVN199 and FTVN199C (gray cabinet)
- NTI TFTN150 and TFTN199 (gray cabinet)
- HTP EFTU-150WBN, EFTU-150WCN, EFTU-199WBN and EFTU-199WCN, Elite Fire Tube Ultra (black cabinet)
- Serial number: rating plate on the left side of the boiler. Only units inside the ranges on the CPSC notice are covered.
- Sold by independent heating and plumbing contractors and wholesale distributors from May 2021 through July 2026, for $3,200 to $7,700
- Recall number 27-051. Made in Canada by Ariston Canada Inc., formerly NTI Boilers
Ariston's own notices give the build windows. About 6,329 FTVN and TFTN boilers were made between June 14, 2021, and March 20, 2023, and about 658 EFTU boilers between April 1, 2021, and Nov. 9, 2022. Health Canada lists sales from May 2021 to August 2025, which ends earlier than the CPSC date.
A new controller, then a combustion test
The repair kit is a new control board with revised software meant to reduce the likelihood and severity of a delayed ignition. It is free, must be installed by a certified technician, and Ariston says it will reimburse eligible labor "in accordance with standard service practices." Part numbers are 6501575600 for FTVN and EFTU units and 6501575700 for TFTN units, ordered through a wholesaler or from Ariston.
The technician also inspects the condensate dish, and Ariston replaces any dish that looks damaged at no charge. After the repair, the boiler gets a combustion test with a gas analyzer before it returns to service, and a label goes on the cross brace or front cover to show the unit has been repaired. Ariston's recall FAQ says an owner should get the repair about three days after contacting the company.
Installers and distributors have their own duties under the firm notices. Ariston asks them to send at least two rounds of notice to customers, spaced two weeks apart, and to quarantine any recalled boilers still in inventory and send the list to the company.
Owners who must keep running a boiler while they wait should have working smoke and CO alarms, the CPSC said. Ariston can be reached at 800-688-2575, 7 a.m. to 8 p.m. ET weekdays, or VCexchanger@ariston.com.
Why This Matters to Contractors
Recall 27-051 follows CPSC recall 25-325 of June 2025, which pulled about 96 HTP ELU Elite Ultra wall-hung boilers whose burner doors could fail to seal because of incorrect studs. No incidents were reported then. That fix was mechanical, while the EFTU and FTVN remedy changes ignition control software, so a repaired boiler still needs the dish inspection and gas analyzer reading before it is left running.
Sources
- U.S. Consumer Product Safety Commission, "NTI and HTP Brand Gas Boilers Recalled Due to Risk of Serious Injury or Death from Fire, Carbon Monoxide (CO) Poisoning and Impact Hazards; Manufactured by Ariston, formerly NTI Boilers," recall 27-051, Oct. 29, 2026. cpsc.gov
- Health Canada, "Residential Gas Boilers recalled due to impact, carbon monoxide poisoning and fire hazards," October 2026. recalls-rappels.canada.ca
- Ariston Canada Inc. (NTI), "Important Safety Notice: FTVN and TFTN Series Boilers," October 2026. ntiboilers.com
- HTP, "Important Recall Notice: EFTU Series Boilers," October 2026. htproducts.com
- U.S. Consumer Product Safety Commission, "HTP Brand Boilers Recalled Due to Fire and Carbon Monoxide Poisoning Hazards and Risk of Serious Injury or Death Made by NTI Boilers," recall 25-325, June 5, 2025. cpsc.gov