Holiday lights go up faster each year, and many strings come out of a box in the garage that has not been opened since January. Before the first strand gets plugged in, fire officials have a short list of habits to skip.
Five of them come up again and again in official safety guidance: using frayed cords, using lights that are not lab-tested or are wrong for the spot, linking too many strands, overloading outlets and leaving lights on overnight or while no one is home.
Why Fire Officials Watch Holiday Lights
Tree fires are not common, but they tend to be serious when they happen. According to a Connecticut fire administrator’s summary of National Fire Protection Association data, fire departments responded to an average of 230 home structure fires per year that started with Christmas trees. About one in 40 of those fires caused a death, compared with about one death per 142 home structure fires overall. Readers can find a longer checklist in seven checks for the tree, cords and outlets, and budget decorating ideas help keep the display looking good without piling on more strings.
The same summary says one-third of Christmas tree fires involved electrical failures or malfunctions. The Harrisburg, North Carolina, tree safety sheet gives a similar figure, saying one quarter of home Christmas tree fires are caused by electrical problems.
1. Never Use Lights With Frayed or Worn Cords
The guidance is direct about damaged strings. The Harrisburg tree safety tips say to replace any light string with worn or broken cords or loose bulb connections. The Connecticut summary repeats the advice, telling households to replace strings with worn or broken cords or loose bulb connections.
A quick check before hanging anything takes only a few minutes, and it applies to the strings that have been stored for a year as much as to new ones. Homes updating their look for the season may also like energy-efficient home improvement tips.
2. Never Use Lights That Are Not Lab-Tested or Rated for the Spot
Both documents say to use lights listed by a qualified testing laboratory. The Connecticut summary adds that the label should come from an independent testing laboratory, and that households should check whether lights are rated for indoor use, outdoor use or both.
That matters when a string moves from the tree to a porch rail. Some sets are made only for indoor or only for outdoor use, according to the Harrisburg sheet. A related list of eight things never to do with a tree and lights covers more of the decorating routine, and cozy winter crafts offer light-free ways to decorate.
Limits on Strands and Outlets
3. Never Connect More Strands Than the Limit Allows
Connecting too many sets can overload the first string in the chain. Another household item with limits is covered in six things never to do with a space heater. The Connecticut summary says to connect no more than three mini string sets, and no more than 50 screw-in bulbs. For LED lights, it says to follow the manufacturer’s limit on how many strands can be connected. Thrifted ornaments, as in home décor essentials to buy at the thrift store, add sparkle without adding wattage.
The Consumer Product Safety Commission’s holiday safety page gives the same cap for older lights, saying not to connect more than three sets of incandescent lights together. Harrisburg’s sheet tells households to follow the manufacturer’s instructions on how many strands can be linked.
4. Never Overload Electrical Outlets
The Consumer Product Safety Commission also says not to overload electrical outlets. Decorations often pile onto a single wall outlet, which is where appliances that should never go on a power strip offers a useful reminder about what else shares the circuit.
Heat is the other half of the picture. The Connecticut summary says nearly 20 percent of tree fires occurred because a heat source was too close, and the Harrisburg sheet says a heat source too close to the tree causes roughly one in four fires. Both advise keeping the tree at least three feet from fireplaces, radiators, candles and heat vents.
When the Lights Stay On
5. Never Leave Tree Lights On Overnight or While No One Is Home
The simplest rule on the list is also the easiest to forget. The Harrisburg sheet says to turn off tree lights before leaving home or going to bed.
The Consumer Product Safety Commission adds that a dry tree can become dangerous quickly, noting that live trees should be kept watered because of what can happen in less than a minute with a dry tree. The Harrisburg sheet says to add water to the stand daily, and to cut 2 inches off the base of the trunk before setting the tree in the stand.
Candles belong in the same category. Harrisburg says never to decorate a tree with lit candles, and the Consumer Product Safety Commission says never to leave candles unattended.
After the Holidays
Good habits continue after December. The Harrisburg sheet says to remove the tree after Christmas or once it dries out, because dried-out trees are a fire hazard and should not be kept in the home or garage or set against the house. It also suggests bringing outdoor lights indoors after the holidays to prevent hazards and extend their life.
A quick pass through the cords, labels, strand counts and outlets before plugging in puts all five rules to work at once, and it costs far less than replacing a damaged string.
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This article was produced with AI assistance and edited for accuracy against the sources linked above.
Image: Anthony92931 – CC BY-SA 3.0/Wikimedia Commons
