Hearth Record

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Mainstays portable electric heaters

7 reports to CPSC, the latest made Mar 3, 2024. A report isn’t a recall.

Watch it to hear when CPSC publishes new reports about it. CPSC’s own search, on saferproducts.gov

Watch and the shortlist are kept with a free account, on every device. Your watch list. CPSC’s own search is on saferproducts.gov.

At a glance

From SaferProducts.gov, released Oct 25, 2026.

  • 7reports to CPSC
  • Mar 3, 2024the latest report was made
  • Apr 12, 2021the earliest
  • 0with the company’s comments
Brand
Mainstays
Maker
Walmart Stores Inc.Makers, importers or sellers, as the reports name them
Product
Portable electric heatersCPSC’s product type: Portable Electric Heaters (code 348), in Home Maintenance and Structures: Heating, Ventilation & Air Conditioning
Other ways the reports write the brand (1)

“Mainstays Fan-Forced Heater”

By month

3 reports from April 2023 to March 2024; the most in March 2024, 1. 4 earlier reports, since April 2021, are in the table.
The numbers, as a table
Reports to CPSC by the month each was made, newest first
MonthReports
March 20241
January 20241
December 20231
March 20231
January 20221
October 20211
April 20211

How badly anyone was hurt

  • Hurt, no treatment 1 CPSC: Injury, No First Aid or Medical Attention Received
  • No one hurt 6 CPSC: Incident, No Injury

As each report says it, in short words; CPSC’s own words are under each.

The reports, as CPSC published them

Reports people made to the U.S. Consumer Product Safety Commission. CPSC publishes each one after sending it to the company named, and doesn’t guarantee they’re accurate. A report isn’t a recall.

Each report is the words of the person who made it, as CPSC published them. The company’s comments, where CPSC published any, are set apart as the company’s own.

Source:

CPSC, SaferProducts.gov public database export. Released Oct 25, 2026. Updated daily.

  1. No one hurt

    Made Mar 3, 2024, sent to the company Mar 6, 2024, published by CPSC Mar 20, 2024

    The product, in the report: Electric fireplace, spaceheater

    Electric fireplace space heaters plug got extremely hot. I turned it off and when I went to unplug it, it seemed stuck. After I finally got it unplugged, I saw the outlet was burned, and the plastic and metal on the end of the cord was melted and very hot and smoking

    Model
    SHAG G24F
    Serial number
    E361908
    Bought from
    Wal Mart
    Bought
    Jan 1, 2023, about then
    Where
    Boonville, North Carolina: Home/Apartment/Condominium
    Who was involved
    Age 2, Female
    The reporter’s relation to them
    Other Relative
    As this report names them
    Brand Mainstays, made or sold by Walmart Stores Inc.
    How badly, in CPSC’s words
    Incident, No Injury
  2. No one hurt

    Made Jan 11, 2024, sent to the company Jan 31, 2024, published by CPSC Feb 22, 2024

    The product, in the report: ceramic min heat fan

    the heat fan plugged in at the time when turned on it sparked fire back wire

    Bought from
    walmart
    Where
    Unspecified: Other
    Who was involved
    Unspecified
    The reporter’s relation to them
    Unspecified
    As this report names them
    Brand mainstays, made or sold by Walmart Stores Inc.
    How badly, in CPSC’s words
    Incident, No Injury
  3. Hurt, no treatment

    Made Dec 9, 2023, sent to the company Dec 13, 2023, published by CPSC Dec 28, 2023

    The product, in the report: Mainstays Personal Mini Electric Ceramic Heater 400W Indoor, Black Manufacturer Part Number: MH-16B Link: https://www.walmart.com/ip/Mainstays-Personal-Mini-Electric-Ceramic-Heater-400W-Indoor-Black/531643181

    The (Walmart) Mainstays Personal Mini Electric Ceramic Heater 400W is dangerously designed. It has a metal front grille that gets hot enough to cause burns, while the unit is light enough that turning the switch off requires grasping it in a way likely to cause further injuries. I received a minor burn from merely brushing against the front momentarily when the heater was sitting on the floor in a normal operating setup.

    Manufacturer Part Number: MH-16B Link: https://www.walmart.com/ip/Mainstays-Personal-Mini-Electric-Ceramic-Heater-400W-Indoor-Black/531643181

    Model
    MH-16B
    UPC
    815900020931
    Bought from
    Walmart, Texas
    Bought
    Oct 30, 2023
    Where
    Abilene, Texas: Home/Apartment/Condominium
    Who was involved
    Age 39, Unknown
    The reporter’s relation to them
    Self
    As this report names them
    Brand Mainstays, made or sold by Walmart Stores Inc.
    How badly, in CPSC’s words
    Injury, No First Aid or Medical Attention Received
  4. No one hurt

    Made Mar 14, 2023, sent to the company Apr 6, 2023, published by CPSC Apr 20, 2023

    The product, in the report: Mainstays Ceramic Heater model MH-16B

    The power cord began to spark and caught fire. It did not self-extinguish, I had to unplug the heater and blow out the fire.

    This happened where the cord meets the heater. I’ve only had the heater for a few months.

    Model
    MH-16B
    Serial number
    3125218
    Bought from
    Walmart
    Bought
    Jan 4, 2023, about then
    Where
    Niagara Falls, New York: Home/Apartment/Condominium
    Who was involved
    Age 41, Unspecified
    The reporter’s relation to them
    Unspecified
    As this report names them
    Brand Mainstays, made or sold by Walmart Stores Inc.
    How badly, in CPSC’s words
    Incident, No Injury
  5. No one hurt

    Made Jan 22, 2022, sent to the company Jan 27, 2022, published by CPSC Feb 10, 2022

    The product, in the report: Quartz Heater, space heater

    My space heater stopped working. I disassembled it and found that it had signs of a short circuit and a rusty connector. I purchased it last year at Walmart. It was only ever stored inside. It was a Mainstays brand quartz heater, model # WSH20Q3AWW.

    Model
    WSH20Q3AWW
    Serial number
    18520464
    Bought from
    Walmart, North Carolina
    Bought
    Dec 9, 2020, about then
    Where
    WINSTON SALEM, North Carolina: Home/Apartment/Condominium
    Who was involved
    Unknown
    The reporter’s relation to them
    Self
    As this report names them
    Brand Mainstays, made or sold by Walmart Stores Inc.
    How badly, in CPSC’s words
    Incident, No Injury
  6. No one hurt

    Made Oct 24, 2021, sent to the company Oct 27, 2021, published by CPSC Nov 10, 2021

    The product, in the report: Plastic Space heater

    Space heater spontaneously caught fire in my basement and could have burned my house down. It was plugged in but not even running. In a matter of minutes it caught fire, and engulfed my basement and first floor in thick black smoke. Fortunately, this device was sitting on my concrete basement floor, about 6” from the bottom step, apparently just far enough away to not set the stairs on fire. I Inhaled a bunch of black smoke putting out the fire. Had this device been anywhere else in my 100 year old home, I would not have a home this evening.

    Model
    Mainstays HF 1008B
    UPC
    Burned
    Serial number
    Burned
    Bought from
    Walmart, West Virginia
    Bought
    Oct 1, 2021, about then
    Where
    Fairmont, West Virginia: Home/Apartment/Condominium
    Who was involved
    Age 53, Female
    The reporter’s relation to them
    My Spouse
    As this report names them
    Brand Mainstays Fan-Forced Heater, made or sold by Walmart Stores Inc.
    How badly, in CPSC’s words
    Incident, No Injury
  7. No one hurt

    Made Apr 12, 2021, sent to the company May 18, 2021, published by CPSC Jun 2, 2021

    The product, in the report: Mainstays Portable heater Model wsh20q3abb

    Caller is reporting that the portable heaters she purchased from the retailer has electrical failures. She stated that the first heater went out in December, they smelled a burnt electrical odor and noticed that the unit was emitting sparks. She stated that the heater overheated melting the plug. Caller stated that the second heater was plugged in not powered on but when she got up she noticed that the plate on on the wall and parts of the wall for the plug had turned black. The incident melted the plug as well.

    The manufacturer was contacted and she was advised to return it for a replacement. Caller is concerned that these heater are a fire hazard and should be reported.

    Model
    wsh20q3abb
    Bought from
    Walmart, Arizona
    Bought
    Apr 20, 2020
    Where
    St Johns, Arizona: Unspecified
    Who was involved
    Female
    The reporter’s relation to them
    Unspecified
    As this report names them
    Brand Mainstays, made or sold by Walmart Stores Inc.
    How badly, in CPSC’s words
    Incident, No Injury

CPSC’s disclaimer

Disclaimer: CPSC does not guarantee the accuracy, completeness, or adequacy of the contents of the Publicly Available Consumer Product Safety Information Database on SaferProducts.gov, particularly with respect to information submitted by people outside of CPSC.

Source:

Word for word, from the disclaimer in CPSC’s export.

Sources

Sources
  • U.S. Consumer Product Safety Commission, SaferProducts.gov public database export.

    Released Oct 25, 2026 and checked Oct 25, 2026. Updated daily. Public domain (U.S. Government work). CPSC asks to be credited, and that no endorsement be implied.

Source:

Reports of harm are from the U.S. Consumer Product Safety Commission (CPSC), on SaferProducts.gov. CPSC does not endorse Hearth Record.

Back to Portable electric heaters

How to read a record

Four things every record does, shown on an example record made up for this guide.

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Not fully inspected in over two years (CMS flag)

11 health citations at the latest inspection cycle

The state average is 14.3.

Source:

CMS, State and US Averages and Health Deficiencies. Released Oct 8, 2026. Updated monthly.

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