Space heater safety: a simple guide for every home

September 26, 2026 · 6 min read

Photo of red fire extinguishers lined up and being checked

Durham winters are fairly mild, but chilly mornings and cold snaps still make a portable heater useful in a home office, bedroom or basement. Used correctly, it's safe and efficient. Here's how.

Choose safety features

  • Tip-over switch: shuts the heater off if it falls over.
  • Overheat protection: turns it off before it gets too hot.
  • Cool-touch casing: a good idea with children or pets at home.
  • Certification: look for a UL, ETL or similar safety mark.

Keep three feet clear

Keep the heater at least three feet from anything that can burn, including curtains, bedding, sofas and paper, and set it on a hard, level floor.

Plug in safely

  • Plug directly into a wall outlet; don't use an extension cord or power strip.
  • Avoid sharing the outlet with other high-power appliances.
  • Replace the heater if the cord or plug is damaged or feels hot.

Don't leave it running unattended

Turn the heater off when you leave the room or go to sleep. Timers and thermostats make this simple.

Keep alarms and a plan in place

Test smoke and carbon monoxide alarms monthly and replace batteries yearly. Keep a fire blanket near the kitchen and make sure everyone knows two ways out of the home.

Checklist

DoDon't
Keep three feet of spaceDry clothes on it
Use a wall outletUse an extension cord
Switch off when you leaveLeave it on overnight
Test alarms monthlyIgnore a damaged cord
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