Simplified Calculation of the Number of Bimetallic Radiator Sections

This article discusses the issue of a simplified calculation of the number of sections for a heating system. The advantages and disadvantages of bimetallic radiators are considered. With the help of what methods you can count the number of sections. The method of calculating them by area, by volume, norms, which regulate the minimum power of batteries per 1 m2 of area.  What parameters should be considered when calculating the number of sections.