Radiant bar heaters have been around for decades and there's a good reason for this. They produce a lot of heat very quickly and are extremely popular among people who like the feeling of direct heat on their bodies. Radiant bar heaters are recommended for use for short periods. When they're switched on, an electric current flows through a specially designed resistive element. The resistance causes electrical energy to be converted to heat energy, which is radiated out. Bar heaters from Goldair are available in 800W to 2400W output and in 3 and 4 bar designs. Each radiant heater features adjustable heat settings, integrated handles and a tip-over switch.