Aluminum Radiators have a more attractive appearance. The relatively high mechanical properties of aluminum makes it possible to create radiators from it with sections of large surface. In addition to the external differences of aluminum radiators of different models and manufacturers, there are differences in their production technology. The most common method of casting under pressure is from silumines — alloys from aluminum and silicon with a silicon content up to 12%. As a rule such radiators are designed for a working pressure of 6 bars.

Aluminum radiators, unlike cast iron ones, the capacity of the sections of which is 2,5–3,5 litres, have a section capacity of less the 0,5 litres. Reducing the total capacity of the heating system entails many benefits and amenities. Lower capacity causes a decrease in warmth carrier volume and diameters of the pipelines and also of the power supply of circulating pumps and, as a result, reduces the financial cost. Moreover, the system becomes less inert and therefore reacts more easily to automatic management.