Power consumption
The power consumed by the fan during normal operation.
This parameter primarily affects the power consumption of the device and the load on the power grid created during its operation. However, the latter is usually not critical, since the power of most modern fans is low. Also, the more powerful the device, the higher its performance(see above). However, there is no unambiguous dependence here — much is determined by how effective the design is. Therefore, models with the same performance can differ markedly in power consumption.
When choosing between two similar models with different power consumption, you should proceed with how often and for how long you plan to turn on the fan. If regular work is expected for a long time — for example, to ventilate the kitchen while cooking — you should pay attention to a less powerful model. It may cost more, but the price difference can quickly pay off in energy savings. If the fan turns on occasionally (for example, when installed in the bathroom of a residential apartment), you can not pay much attention to the power consumption.
Cover height
The size of the decorative fan cover in height.
For details on the features of such panels in different types of fans, see "Cover diameter". The same size is indicated in cases where the panels are in the shape of a square or rectangle (see "Cover shape").
Cover width
The size of the decorative fan cover in width.
For details on the features of such panels in different types of fans, see "Cover diameter". The same size is indicated in cases where the panels are in the shape of a square or rectangle (see "Cover shape").
Cover thickness
The size of the decorative fan cover in thickness.
This parameter describes how much such a panel protrudes above the surface of the wall or ceiling on which the fan is installed. For more information about the general features of decorative panels in different types of fans, see "Cover diameter".
Mounting depth (duct)
Mounting depth of the fan with a standard installation method.
This parameter describes how deep into the duct the unit (or its parts in the case of surface-mounted models, see "Type") is placed during installation. Knowing the mounting depth, it is possible to assess the suitability of the selected model for a particular installation location: a flat section at the very beginning of the duct must be no less than the installation depth of the selected fan.
The smallest value of this parameter is typical for some overhead models of fans: in them, the main part of the structure is outside, and usually, only 2-3 centimetres are required for installation. And most of all, hidden units require space (see "Type").
