If you’ve ever been stuck at home during a power outage in the dead of winter, you know how quickly a cozy space can turn bone-chilling (especially if you don’t have a fireplace to fall back on). That’s why I always keep a few light sources around that do double duty, giving off both light and heat. It’s one of those simple prepper tricks that anyone can use, even if you’re just starting out. These aren’t fancy or high-tech solutions, just reliable tools that can make a big difference when the temperature drops and the lights go out.
The best part? These are all safe to use indoors, as long as you follow some basic safety steps. You might be getting ready for a storm, planning for the unexpected, or just looking for a backup way to stay warm; these five options are worth knowing about, and maybe even adding to your stash.
Oil Lamps
There’s something comforting about an oil lamp’s soft glow — it’s steady, quiet, and warm. These lamps burn clean oils like paraffin or liquid paraffin, and when used correctly, they’re safe indoors. The heat they give off can warm up a small room or keep your hands toasty while you read or play cards. Just be sure to crack a window or leave a door open a little for airflow, and never walk away from a lit lamp.
Candle Lanterns
If you’ve never used a candle lantern, you’re in for a treat. They’re basically a safer, more efficient version of an open candle — enclosed in glass or metal to trap heat and reduce fire risk. A few of these in a small room can raise the temperature by a couple of degrees, and they create a really cozy vibe, too. Go for long-burning candles made from beeswax or soy if you can, and keep a few on hand for emergencies or just quiet nights in.
UCO Candlelier (Multi-Candle Lantern)
This is a specific tool I’ve used and recommend: the UCO Candlelier. It holds three candles at once and was designed with emergency heat and cooking in mind. It gives off enough warmth to gently heat a small tent or room and can even boil water in a pinch if you use the top surface. It’s reusable, portable, and runs on standard UCO candles or any similar size.
Canned Heat (Sterno or Ethanol Gel)
These are the little cans often used under buffet trays, but they’re surprisingly handy for home emergencies too. Canned heat burns cleanly with minimal odor and gives off both visible light and steady heat. You can use it to warm up your hands, cook a small meal, or gently heat a small space—just place the can in a fire-safe container and keep the area ventilated. Always use on a stable, non-flammable surface.
Indoor Kerosene Lanterns (With Clean Fuel)
Kerosene lanterns aren’t as common these days, but with the right fuel and ventilation, they’re a solid off-grid option. Look for models labeled for indoor use and choose a clean-burning, low-odor kerosene made specifically for lanterns. They produce bright light and strong heat—enough to noticeably warm a small room. Just be sure to follow the manufacturer’s instructions and crack a window if the air starts to feel stuffy.
A Little Light, A Lot of Comfort
Knowing which light sources can also help heat your home is one of those small but mighty prepper tricks that really pays off. Whether you’re facing a power outage, cutting back on energy use, or just trying to stay more self-reliant, these tools can give you peace of mind. You don’t need fancy gear—just a little knowledge and a few smart choices.
Start with one or two from this list and try them out on a cold evening. You might be surprised by how much warmth a single bulb or lantern can add to your space. It’s all about building comfort and confidence, one small step at a time.
