Convection heaters provide gradual, even heat throughout a room using a relatively low level of energy. To heat a space, each convection heater circulates convection currents throughout the heater body and across a heating element—such as oil, an electric coil, or an electric wire. This process heats up the air and causes it to increase in area until eventually, it blankets an entire room.
Oil-filled radiators and ceramic heaters are popular types of convection heaters. Some electric convection heater models are also fan-assisted for faster room coverage. Portable convection heater units are ideal for long-term, economical, whole-room heating, so consider using one of these heaters in the rooms you use the most during the day.