Fire and burn

Pool Heaters Recalled by Pentair Water Pool and Spa Due to Fire Hazard

Recalled 2021-04-28. Fire and burn hazard. Here is what the CPSC published, and what you are owed.

About 4,700Units
2021-04-28Recall date
None reportedInjuries

The text below is quoted from the CPSC notice word for word.

What was recalled
This recall involves Pentair Water Pool and Spa StaRite and Mastertemp pool heaters sold in various styles and models with manufacturing dates between December 22, 2020 and January 6, 2021. The manufacturing date, along with model number, can be found on the serial number sticker on the heater. Recalled Pool Heater Model Numbers HTR 250 MASTERTEMP LP HTR 250 MASTERTEMP NA HTR 300 MASTERTEMP NA HTR 400 MASTERTEMP HD HTR 400 MASTERTEMP LP HTR 400 MASTERTEMP NA HTR 400NG MASTERTMP HD ASME HTR MT 250LP SPECIAL PACKING EC HTR MT 250NA SPECIAL PACKING EC HTR MT 400LP SPECIAL PACKING EC POOL HTR 333K LP POOL HTR 333K NAT GAS POOL HTR 400K LP POOL HTR 400K NAT GAS POOL HTR HD 200K NA POOL HTR HD 333K NA
The hazard
A connection in the heater can leak the combustible air-gas mixture, posing a fire hazard.
Injuries
No incidents or injuries have been reported.
The remedy
Consumers should immediately stop using the recalled heaters and contact Pentair Water Pool and Spa for a free repair.

The details

ProductsStaRite and Mastertemp pool heaters
Made byPentair Water Pool and Spa Inc
Made inUnited States
CPSC recall number21119
What a recall entitles you to

A refund, a repair or a replacement. The notice says which. It costs you nothing and there is usually no receipt requirement.

Stop using the product first. Recalls do not expire. An old one still counts.

The full CPSC notice, including photographs, is at cpsc.gov.

Source: CPSC SaferProducts recall feed, retrieved 2026-08-06. Newest recall on file 2026-07-30.

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