Here’s something almost nobody thinks about until someone gets hurt: the water heater sitting in your basement, closet, or utility room might be dialed up to a temperature that can cause third-degree burns in under five seconds.
For a long time, many water heaters shipped from factories preset to 140°F. That’s not “hot shower” hot. That’s dangerous. At that temperature, a child or an elderly person who can’t react quickly enough can suffer a serious burn before they even register what’s happening.
Tap water scald burns cause an estimated 1,500 hospital admissions and 100 deaths per year in the United States. Most of those victims are young kids and older adults — people who can’t pull away fast enough.
Back in 1988, water heater manufacturers voluntarily agreed with the Consumer Product Safety Commission to start presetting new water heaters to 120°F. So if yours is newer, it might already be set correctly. But “might” is doing a lot of work in that sentence. Units get adjusted, settings drift, and plenty of older heaters are still out there running hot.
The fix is simple: check your water heater’s thermostat and set it to 120°F. At that temperature, a healthy adult generally has enough time to pull away before a serious burn develops. It’s not a guarantee against all burns — children and elderly adults can still be burned at 120°F if they can’t react quickly — but the risk drops significantly compared to 140°F.
And here’s the bonus: running your water heater at a lower temperature uses less energy. So you’re not just making your home safer — you’re cutting costs. That’s genuinely rare. Usually safer and cheaper are in opposite directions.
If you’re renting, this might mean asking your landlord to check it. If you own or your family owns the home, it’s worth taking five minutes to look at the water heater dial. Most have a visible temperature gauge or a knob you can turn. If you’re not sure how to adjust yours, a quick search for your specific model will walk you through it.