The Handy Heater The Plug-In Personal Heater is part of the Space Heaters test program at Consumer Reports. In our lab tests, Space Heaters models like the The Plug-In Personal Heater are rated on ...

How is a portable car heater powered? “Most portable car heaters plug into the 12V outlet/cigarette lighter port in your vehicle and draw power directly from the car battery,” says Bialaszewski.

If you’re on a very tight budget, you’re in luck because the most portable room heater also happens to be affordable. It is a plug-in digital electric heater which also sports a display.