Winter Electrical Safety: Space Heaters, Extension Cords and Holiday Lights

Winter is when home electrical fires are most common. Space heaters run for hours, extension cords multiply for holiday lights, and older wiring carries more load than it does the rest of the year. These simple habits keep the season safe.

Space Heaters

• Plug it directly into a wall outlet. Never into an extension cord or power strip; heaters draw a lot of current and can overheat them.
• Keep three feet clear around it: furniture, curtains, bedding, paper and people.
• Choose one with tip-over and overheat shutoff and a recognized testing lab listing.
• Turn it off when you leave the room or go to sleep.
• Don’t share the circuit with another heavy appliance. If the breaker trips, that’s the warning. See why breakers trip.
• Feel the outlet and plug after it runs a while. Warm means stop and have it checked.

If you rely on space heaters to keep rooms warm all winter, a dedicated circuit, better insulation or a heating system upgrade may be the safer long-term answer.

Holiday Lights and Decorations

• Use lights listed by a recognized testing lab, and outdoor-rated lights and cords outside.
• Inspect strings for cracked sockets, frayed wires and loose connections; throw damaged sets away.
• Follow the manufacturer’s limit on how many strings can be connected end to end.
• Plug outdoor decorations into GFCI-protected outlets with weatherproof covers.
• Don’t run cords through doors or windows where they get pinched, or under rugs.
• Use a timer, and turn decorations off at bedtime and when you leave.
• Keep natural trees watered; dry trees catch fire quickly.

If you decorate in a big way every year, a dedicated outdoor circuit and a few well-placed outdoor receptacles beat a web of extension cords.

Generators and Ice Storms

Winter outages bring generators out. Run them outdoors only, at least 20 feet from the house, never in a garage, and connect them through an inlet and interlock or transfer switch, never a wall outlet. Make sure carbon monoxide alarms are working. See storm season preparation.

Heat Tape, Block Heaters and Outdoor Outlets

• Use pipe heat cable listed for the purpose, installed per the instructions, on a GFCI-protected outlet; never wrap it over itself.
• Engine block heaters and tank heaters need outdoor-rated cords and GFCI protection.
• Keep outdoor outlet covers closed against snow and ice.

Check Your Alarms

Winter is a good time to test smoke and carbon monoxide alarms and replace batteries. See our family safety guide.

Need more outlets or a dedicated circuit before the cold sets in? Book a visit on our booking page.

Frequently Asked Questions

Can I plug a space heater into a power strip?

No. Plug space heaters directly into a wall outlet. Power strips and extension cords can overheat.

Why does my space heater trip the breaker?

A heater draws a lot of current; with other loads on the same circuit, it can exceed the circuit’s rating. Move it to another circuit or have a dedicated one added.

Are indoor holiday lights OK outside?

No. Use lights and cords rated for outdoor use, plugged into GFCI-protected outlets.

How many strings of lights can I connect?

Follow the limit printed on the light string or its packaging.

Keeping Homes Safe All Winter

Our licensed, insured, background-checked electricians serve Lynchburg, Roanoke, Danville, Martinsville and the surrounding counties. See our residential installations and upgrades.