Fan heater
A fan heater or electric heater is an electrically operated fan, which has a heating element for heating the air passing through it.
Fan heaters are often used as a (temporary ) addition to or as a substitute for central heating.
Practical Operation
Standard units have mostly switched over about one or two kW heating capacity, better equipment also has a thermostat. An advantage is the fast, ubiquitous in outlet near heat, adversely the poor overall efficiency when the electricity is generated from fossil fuels, compared with their direct burning on site.
Construction
The heating in devices for use in a domestic environment usually consists of a bare wire heating element, in which the current-carrying heating resistor is mounted directly in the air stream. For more challenging conditions, such as on construction sites, a robust tubular heater is used instead of bare wire heating element, which allows both a higher degree of protection against the ingress of foreign bodies. Of the propeller, which generates the air flow, is usually driven by a shaded-pole motor. Can usually be made from several heating capacities and operated as a fan without heating via a selector switch. A thermostat is also usually present. Some devices are also equipped with a timer that can be programmed to turn on and off the heater at certain times.
In addition to the self -resetting - fixed temperature switch for overheat protection and a permanently acting temperature fuse is present, the irreversibly shuts off the device at high temperatures. To prevent overheating by turning over, have current heaters usually have a built-in anti-tilt, which turns off the unit when the unit base is no longer touching the ground: in the unit base is a switch to integrated, which cuts off the power supply when the stylus no longer the floor rests.
Instructions for use
When operating near a heater, make sure that this is as free as possible and the air flow is not impeded. Accumulated heat ( caused by too little intake air or exhaust air path blocking ) results in a short time to overheating of the unit and its shutdown, but can also lead to fires. Most heaters are by design not particularly well protected against splashing water.