Yes, but also definitely not.
Space heaters are safer than ever before. Modern space heaters are highly regulated, especially with regard to exposed heating elements and automatic shut-off switches to prevent overheating. But all heating appliances require caution, and even all appliances that draw a lot of energy over long periods require caution.
Most residential heating fires start with actual fires – especially In fireplaces and fuel burnersBut according to the US Fire Administration, space heaters caused more than a thousand fires in the US each year from 2017 to 2019. Although it accounted for only 3 percent of heating fires overall, it caused more than 40 percent of the deaths, partly because portable heaters are placed exactly where people are and because the resulting fires are more likely to be unrelated.
So treat your space heater with the same caution and skepticism it deserves. Here are some very simple safety tips, courtesy of the good federal experts at USFA and the Consumer Product Safety Commission.
Do not leave space heaters unattended. “Unattended” also includes sleeping, y'all! If you insist on using it in your bedroom at night, get a device with a timed shut-off and use it so it doesn't run all night while you sleep. (Or, might we suggest? a wonderful down comforter instead? Very hot.)
Plug your heater directly into an outlet. This is the big one. Basically never use extension cords or power strips with space heaters. Excess cord length increases the electrical load and can cause shorts, overheating, and fire. if you Sure Use long cord, consult an expert to make sure you get the proper gauge and rating.
Do not plug any other appliance into the same outlet or circuit as the space heater. The worst that can happen is that your circuit breaker trips. But that's no fun either.
Place the space heater on a flat, flat surface only. There is no particular need to leave a space heater on a table or chair that may be unstable. Heat rises and moves around the room through convection.
Keep your heater at least 3 feet away from flammable objects. This includes bedding, curtains, furniture, the dress you were going to wear, socks or stockings, your food delivery bag and that great book you are reading.
Do not leave a portable heater running in the child's room. Nor with someone who has mobility issues. The danger is not only of fire but also of overheating.
Keep space heaters away from water And even general humility. Bathrooms are famously dangerous places for high-wattage electrical devices. But also: you know that damp basement? The one that's a little cooler and sometimes has puddles? Not a good place for a space heater.
Read the manual. Manufacturers have all kinds of good advice.