Many people say that the tonnage of the boiler is replaced by the word "ton". In fact, this is only a simple term, and it only corresponds to a steam boiler. If it is a hot water boiler, conversion must be performed to determine the final required boiler tonnage. How big. Zhao Gong of Zhengzhou Fangkuai Boiler Factory explained the direct tonnage conversion of gas-fired steam boilers and gas-fired hot water boilers.
Take steam with zero gauge pressure as an example. The heat energy of one ton of steam produced per hour is obtained by absorbing heat in two steps in the pot. The first step is to heat one ton of feed water at 20 degrees to 100 degrees saturation. The heat energy absorbed by water is usually sensible heat, and its heat energy is 1000×(100-20)=80,000/kcal hour.
The second step is to heat one ton of saturated hot water into saturated steam to absorb the heat energy. This part of the heat is latent heat, and the heat energy is 1000×539=539,000/kcal hour.
Adding sensible heat and latent heat is the heat energy obtained by one ton of steam (when its gauge pressure is zero) in the pot,That is: 53.9+8=619,000/kcal hour. This is what we usually call the heat energy of a ton of evaporation per hour of a steam boiler, which is equivalent to the capacity of a hot water boiler of 600,000/kcal per hour.






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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