DeLonghi and Lasko both make highly-rated space heaters, as of 2015. The Lasko 754200 and DeLonghi ceramic heaters work well in small rooms. The Lasko Low Profile Heater and the DeLonghi TRD0715T Safeheat portable radiator are better for larger rooms.
The Lasko ceramic heater quickly heats up small areas, such as a small bedroom or office. Compared to other small heaters, the Lasko ceramic heater is more compact, less expensive and lighter, although the fan can get loud.
DeLonghi's portable radiator works well in large bedrooms, living rooms or basements that need to be heated for several hours. To control the temperature in the room, it features a built-in thermostat and timer.