If you are in an office that is always too cold or you need a little bit of heat to accommodate a space. A quick cost effective heating solution would be the duct heater. The duct heater makes use of electricity to warm the air that passes through a duct. It consists of a heating element which converts the electricity into heat through resistance. The resulting heat is transferred by conduction or convection to the air passing through the device. These duct heaters are easy to maintain and easy to install. Electric duct heaters can be programmed (with proper controls) in such a way that they can heat up the area at a specific point in time. This results in an efficient heat transfer without wasting energy as the room or space is only heated for the required times.