The 400 Watt, 120-Volt wall mounted panel heaters are safe, economical to use and work based on the principle of convective heat transfer. The panels are mounted ¾” from the wall to create a convection channel using the hardware provided and requires a simple do-it-yourself installation. Based on the principle of heat convection, the hot air rises and gets displaced by cooler air creating convective air currents within the room that gradually move warmer air to achieve a uniform ambient temperature. The Amaze-heaters do not have built-in fan; therefore, there is no noise and no stirred-up dust; this eliminates airborne dust problems. The 400 Watt heater is ideal for a regular size room up to (120 sq. ft.). These units are perfect not only to provide supplemental heat but also to warm up any cold spots in the house. Can be painted to match any decor with latex paint