Pool Heaters Recalled by Pentair Water Pool and Spa Due to Fire Hazard
Home product recall 21-119. Announced by CPSC on Apr 28, 2021.
- CPSC: stop using it
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 Apr 28, 2021. Copied from CPSC on Oct 19, 2026.
- Stop using it what CPSC tells owners to do now (needs attention)
- Repair what’s offered
- About 4,700 (In addition, about 21 were sold in Canada) units, as CPSC gives them
- None injuries, CPSC’s notice says
Every line below is in CPSC’s own words, with its source beside it.
What’s wrong with it?
A connection in the heater can leak the combustible air-gas mixture, posing a fire hazard.
CPSC, Recalls API. Checked Oct 19, 2026. Updated daily.
What should you do?
Consumers should immediately stop using the recalled heaters and contact Pentair Water Pool and Spa for a free repair.
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: Pentair Water Pool and Spa at 800-831-7133 from 8 a.m. to 7:30 p.m. ET Monday through Friday, or online at www.pentair.com and click on Products, then Pool and Spa Equipment, then Pool Heaters, then Additional Resources for more information
Which ones are 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
About 4,700 (In addition, about 21 were sold in Canada) units, as CPSC gives them.
StaRite and Mastertemp pool heaters.
CPSC, Recalls API. Checked Oct 19, 2026. Updated daily.
CPSC’s photos
CPSC shows 3 photos on its notice. Hearth Record doesn’t copy them; each opens on cpsc.gov.
Who made and sold it?
- Made by Pentair Water Pool and Spa Inc., Sanford, N.C.
- Pool equipment distributors nationwide between December 2020 and January 2021 for between $2,200 to $3,100, depending on the model.
- Made in United States, as the notice gives it.
CPSC, Recalls API. Checked Oct 19, 2026. Updated daily.
Was anyone hurt?
No incidents or injuries have been reported.
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.