8 Best Space Heaters (2026): Tested, Measured, and Mistreated

I tested three dozen space heaters in the past two years alone. These are the best portable heaters to heat a room quickly, quietly, and safely. +++lead-in-text The Best space heaters are winter’s rear guard, the last line of defense against goose bumps and cold feet. Though not a great way to heat a whole home, space heaters can be indispensable for a late-evening movie night, a workbench in a chilly garage, or the home’s odd corners that refuse to heat. And if you live in an apartment building where you don’t control the heat, it may be your only way to feel OK in January.