The types of modern radiators are categorized based on the materials used, and there are four main categories:
1. **Steel Radiators** – This group includes plate-type, column-type, column-wing type, flat-tube type, string piece, fin-tube, combination, and decorative models. These are known for their durability and efficiency in heat distribution.
2. **Aluminum Radiators** – Common types include column airfoil (tube, plate-wing, pull type), die-casting, and decorative designs. Aluminum radiators are lightweight, energy-efficient, and offer a modern aesthetic.
3. **Copper-Aluminum Composite Radiators** – These consist of copper tubes with aluminum fins, such as brass L-shaped aluminum fins, copper-aluminum composites, and all-copper decorative models. They combine the thermal conductivity of copper with the strength of aluminum.
4. **Cast Iron Radiators** – Available in column, column-wing, wing, art, and directed convection styles. Though traditional, they remain popular for their long-lasting performance and classic appearance.
Currently, three types of radiators are particularly popular:
- **Steel Pipe Radiators** – Represented by brands like Sunde, these are widely used due to their affordability and reliability.
- **Copper-Aluminum Composite Radiators** – Originating from Shandong, these have gained popularity for their high efficiency and sleek design.
- **Decorative Radiators** – Often inspired by European styles, such as those from Florence, these radiators blend functionality with aesthetics.
*Image: Copper and Aluminum Radiators*
According to some estimates, there are over 70 radiator manufacturers and sellers in Beijing, and more than 200 in Tianjin. Most of these companies focus on producing the three most popular types. The Beijing-Tianjin region has emerged as a major production hub for new radiators, with many companies in neighboring Shandong also contributing to this industry.
Historically, two major radiator production bases existed in China. One was in Qingxu County, Taiyuan, Shanxi, which dominated the gray cast iron radiator market, accounting for over 70% of national output. While this area is still significant, its share has declined with the rise of newer radiator technologies. Another base was in Heilongjiang, especially in Daqing and Acheng, where steel finned tube radiators were produced. However, the high-quality and cost-effective welded finned tubes from Shanxi’s Niangziguan area are now gaining ground and may soon replace Heilongjiang as the primary production center.
The Beijing-Tianjin region is considered China’s new radiator production hub not only because of the large number of companies but also due to their strong financial backing. Out of the six radiator companies that invested over 100 million yuan in China (Sunde, Beixin, Jintaige, Reiterge, Spring Breeze, and Enthusiastic), four are located in the Beijing-Tianjin area. Sunde, one of the top-selling radiator companies in China, is based in Beijing. Additionally, four out of the five major companies with advanced technology, automation, and mechanization (Beixin, Sunde, Jintag, Reitge, and Changzhi 7445) are located in this region.
Beijing remains the largest radiator market in China. As a result, the Beijing-Tianjin area is not just a production base for new radiators but also a comprehensive hub that gathers leading enterprises, innovative products, and large-scale professional retailers.
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