Oil and gas boilers are widely used in food, printing and dyeing, chemical, pharmaceutical and other industries, and are currently heat energy supply equipment that meets national environmental protection requirements. As a mechanical equipment, it needs good maintenance to extend its life. Before maintaining the boiler, it is necessary to know the names of various parts, the names and positions of various professional terms.
The heated surface, as the name suggests, is the place to receive and transfer heat. In the oil and gas boiler equipment, the heating surface refers to the interface that absorbs heat from the exothermic medium and transfers it to the heating medium, including convective heating surface and radiant heating surface.
1. Radiant heating surface
The heating surface that absorbs heat from the heat-releasing medium mainly by means of radiation heat exchange, and the heating surface that absorbs heat from the heat-releasing medium mainly by means of radiation heat exchange. Such as water-cooled wall pipes, furnace bladder, etc.
2. Convection heating surface
The heating surface that absorbs heat from the high-temperature flue gas by means of convective heat exchange usually refers to the heating surface through which the flue gas passes, such as flue, convection tube bundle, etc.




We, Zhengzhou Fangkuai Boiler Co., Ltd. (Fangkuai), are excited to announce our participation in the Indonesia International Heating Technology Exhibition 2025. We will be showcasing our advanced boiler systems engineered for higher efficiency, lower emissions, and sustainable energy performance. Join us at Booth No. B1-08 from November 5–7, 2025 at the Jakarta Convention Center.
The event brings together EXPO BOILER, EXPO BIOMASS, EXPO PUMPS & VALVES, and EXPO CRANE — creating a comprehensive platform for technology exchange and business collaboration across the industrial heating and energy sectors in Southeast Asia.
At the exhibition, we will present our integrated solutions including biomass boilers, industrial steam systems, and full power plant EPC services. Our products emphasize:
Event Details
Date: November 5–7, 2025
Venue: Jakarta Convention Center, Indonesia
Booth: B1-08
We welcome industry partners, plant owners, EPC clients, and technology scouts to visit our booth and explore collaboration opportunities. Whether you are planning a biomass retrofit, a new power plant EPC project, or seeking high-efficiency boiler equipment, our engineers will be available for technical discussions and project consultations.
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