Air conditioning and heating

Fan heaters - simple to use and very efficient

Fan heaters are small, portable household electrical appliances that allow you to quickly distribute heat energy in living rooms. This is especially convenient when traditional furnaces require a long heating time and the distribution of heated water through radiator pipes. The fan heater is a great alternative to traditional heating systems and is great for heating living rooms as well as workshops in basements and garages. Most often, fan heaters are available in the power range from 500W to 2500W. Usually, these devices allow for quick heating of rooms with an area from 10m2 to 20m2. The fan heater is most often single phase 230VAC at 50 Hz. The fan feeding circuit should be protected with a B10 fuse. Most often, fan heaters are made of plastic (polypropylene) housing and are built as second class electrical safety devices. This means that the power cable is two-wire (L- live wire, N- neutral wire) and the device has no protection earth terminal connection.

Fan heater - the principle of operation and functions of its device

In the construction of a typical fan heater, a spiral heater is used, which after switching on the supply voltage is heated to a high temperature due to the current flowing through it. Such a heater heats up very quickly, because just a few seconds after switching on the fan heater. Behind the heater is a propeller that is driven by an electric motor. Due to the rotation, the propeller creates a stream of air that is directed to the heater. In this way, the air compressed by the fan is heated and transferred to the outside via forced circulation. Fan heaters can be additionally equipped with an air filter located behind the propeller to trap particles of larger impurities present in the air. Typical fan heater designs are equipped with a regulator and a mode switch. The regulator - usually as a slider or knob - allows the thermostat to be set, i.e. at what temperature should the thermo-bimetal chopper contacts be opened. However, with the switch the user selects the operating mode - in most designs, there are three operating modes, i.e. the first heating stage, the second heating stage and the fan. In fan mode, the heater circuit is turned off.