Most convectors, recessed into the floor, supplied with copper-aluminum heat exchanger, ie a copper tube threaded into one or more calls a package of rectangular aluminum plates. For the life of the instrument is important, as these thin plates are attached to the tube. If they are stamped Flare increases the contact area a few times (when you look at the side of such heat exchangers may seem that the plates are to be flowing on the tube), the heat exchanger gets a serious chance to preserve the effectiveness of heat transfer in the room during the whole period of operation.
To make the internal parts of the convector invisible through the bars, the heat exchanger, as well as body, stop and control valves cover dark paint.
For information: carefully clean the gutter cleaner should be monthly, wet cleaning should be done regularly (at least once a year, before the heating season).
Regulation of heating the room. Heat transfer from the convector without fan can be controlled by changing the amount of coolant flowing through it (“adjustment of the water”). This is Thermostatic head with remote control.