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Heating

Space Heater Safety: Give It 3 Feet (and When to Fix the Heat Instead)

A space heater can get you through a cold night. Used wrong, it's a fire risk. Here are the rules fire officials repeat every winter, and when it's time to fix the real problem.

Yellow road-sign style graphic reading 3 FT with a space heater icon: give space heaters 3 feet of clearance.

When the furnace or boiler acts up, a lot of North Jersey homes reach for a space heater. That's fine as a short-term fix, as long as you follow a few basic rules. Fire-safety officials, including the National Fire Protection Association (NFPA) and state fire marshals, repeat them every winter for a reason.

The space heater rules

  • Give it 3 feet. Keep space heaters at least 3 feet from anything that can burn: beds, curtains, couches, clothes, paper, and people.
  • Plug it straight into the wall. Don't use an extension cord or power strip, even a heavy-duty one.
  • Turn it off when you leave the room or go to bed. Never leave a space heater running unattended or while you sleep.
  • Put it on a level, hard surface where people and pets won't knock it over, and away from doorways and walkways.
  • Buy a heater that's tested and labeled by a nationally recognized testing lab, such as UL.
  • Keep kids away. Set up a kid-free zone around the heater.

A space heater is a stopgap, not a heating system

If you're running a space heater every day because a room or the whole house won't stay warm, the real problem is still there. Common causes include a furnace or boiler that keeps shutting off, uneven airflow or blocked returns, air trapped in hot-water radiators, or a system that's simply too old or too small for the house.

  • Whole house cold? That's a heating repair call, not a space heater job.
  • One room always cold? See why one room is colder than the rest.
  • Hot-water radiators cold at the top? They may just need to be bled.
  • Heat won't come on at all? On high-efficiency furnaces, a backed-up condensate drain or pump can keep the furnace from starting.

Get the heat fixed, same day

Rescue Plumbing & HVAC offers same-day heating service across North Jersey, 24/7. Our diagnostic visit is $79 and is credited toward the repair, and every job comes with a 1-year parts and labor warranty. If the system needs replacing, we install the new one the next day, guaranteed, when the equipment is in stock. See our furnace services.

Space heater doing all the work?
Same-day heating repair, 24/7. $79 diagnostic credited toward the repair and a 1-year parts & labor warranty. Call (866) 737-2830 or book online.
Get the heat fixed →
How far should a space heater be from furniture?
Fire-safety officials recommend keeping space heaters at least 3 feet from anything that can burn, including beds, curtains, furniture and people.
Can I plug a space heater into an extension cord?
No. Plug space heaters directly into a wall outlet, not an extension cord or power strip.
Is it safe to sleep with a space heater on?
Fire-safety officials advise turning space heaters off when you leave the room or go to bed.
Should I use a space heater instead of fixing my furnace?
Only as a short-term fix. If you rely on a space heater every day, have your heating system checked. Rescue offers same-day heating service with a $79 diagnostic credited toward the repair.
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