Heat Wave Heating: Electricity consumption is lower than electric heaters


Electric heaters are, not least because of the high electricity prices, for many still very expensive and are therefore no alternative. Although heat wave heaters also work with electricity, on the contrary, the operating costs are very low. Read more here.

Technology makes the difference

Although heat-wave heaters are also powered by electricity, they function fundamentally differently than traditional electric heaters or fan heaters, and technology also makes the difference when it comes to consumption.

Classic electric heaters work according to the convection principle, which means they suck in cold air and release it back to the room when warmed up. This requires a lot of energy, because the amount of air that is in a room, but quite considerable, and the air also quickly cools down, that is, must be heated again and again.

In heat wave heaters, on the other hand, it is not the amount of air in a room that is heated, but only the solids in the room are illuminated - the air remains at its original temperature, and at the same time moist and cool. The effect is about the same as standing on a glacier on a sunny winter's day, where the heat radiation of the sun and the reflection of the glacier make it quite endurable in the T-shirt, even if the air temperature is near freezing lies.

Consumption is device-dependent

Consumption values ​​always include the power consumption of a device. A 500 W heat source heater also consumes half a kilowatt hour of electrical power per hour, which it then converts to heat.

The difference in consumption lies only in the fact that heat wave heaters only have to run constantly in the very rare cases. Mostly a few minutes per hour are quite sufficient, especially if the heating is running at regular intervals. Due to the short heat-up time compared to classic heaters, this is no problem.

To heat a large room with a 500 W heat wave heating, which runs for about ten minutes per hour, costs only about 2 - 3 kWh of energy per day. Rarely used rooms, such as the bathroom, can be heated up just before use.

Tips & Tricks

When operating infrared black spots or heat wave heaters, the regular heating intervals are especially important. A time switch at the socket provides good service here, but another, but usually more difficult alternative is the control over the room temperature.


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