The 7 best space heaters (2025), tested and reviewed
Yes, but also definitely no.
Space heaters are much safer than they used to be. Modern space heaters are tightly regulated, especially with regard to exposed heating elements and automatic shut-off switches to prevent overheating. But all heating appliances require caution and so do all appliances that consume a lot of energy over long periods of time.
The vast majority of residential heating system fires originate from actual fires—especially in fireplaces and fuel burners. But space heaters caused more than a thousand fires in the US each year from 2017 to 2019, according to the US Fire Administration. Although these account for only 3% of all heating fires, they have resulted in more than 40% of deaths, partly because portable heaters tend to be placed precisely where people are and because The resulting fire is more likely to be uncontained.
So, treat your space heater with the caution and extreme skepticism it deserves. Here are some fairly simple safety tips, courtesy of the fine federal experts at USFA and the Consumer Product Safety Commission.
Don’t leave space heaters unattended. “Unattended” includes sleeping, folks! If you insist on using a device in your bedroom at night, get one with an off timer and use it so it doesn’t run all night while you sleep. (Or, we can suggest a great comforter instead of? It’s so warmmmmm.)
Plug your heater directly into the outlet. This is a big one. Basically, never use an extension cord or electrical outlet with a heater. Additional wire length increases the electrical load and can lead to short circuits, overheating, and fire. If you Right use longer cords, consult a professional to ensure you get the right gauge and rating.
Do not plug another device into the same outlet or circuit as the heater. Probably the worst thing that happens is you trip the circuit breaker. But that’s not fun either.
Only place space heaters on the floor, on a level surface. There is no need to keep the space heater on a table or chair that may be unstable. Heat rises and moves throughout the room through convection.
Keep your heater at least 3 feet away from flammable objects. This includes your bedding, curtains, furniture, the dress you plan to wear, those stray socks or stockings, your food delivery bag, and that great book you’re reading.
Don’t leave a portable heater running in a room with a baby, as well as for someone with mobility problems. The risk is not only fire but also hyperthermia.
Keep space heaters away from water and even general dampness. Bathrooms are notoriously dangerous places for high-wattage electrical appliances. But also: You know that damp basement? The place is a bit cold and sometimes has puddles? Not a good place for a space heater.
Read the instructions. Manufacturers have all kinds of good advice.
