After a 6-ton natural gas boiler is stable, it can produce 6 tons or more of hot water or steam per hour for use. To say how much natural gas a 6-ton natural gas boiler consumes per hour, this should be one of the issues that users are most concerned about. Zhengzhou Fangkuai Boiler Factory will do the calculations for everyone.
The gas consumption of a natural gas boiler is mainly related to the tonnage of the boiler and the thermal efficiency during operation. The specific calculation formula is as follows:
(Steam enthalpy value—feed water enthalpy value) X evaporation capacity / thermal efficiency / calorific value of natural gas = gas consumption
According to different factors such as furnace type and thermal efficiency, the approximate air consumption for producing 1 ton of steam is 70 to 90 square meters per hour, and the air consumption for producing 6 tons of steam or hot water is multiplied by 6 on the basis of 1 ton. At 420-540 bid square per hour.
If you want the natural gas boiler you use to be more energy-efficient, you can think of ways to improve the operating thermal efficiency of the boiler.
The thermal efficiency of the natural gas boilers launched by Zhengzhou Fangkuai Boiler Factory is generally above 98%, which is much higher than that of other natural gas boilers on the market. After one year of operation, it can save at least tens of thousands to hundreds of thousands of yuan in fuel. Cost, very energy-saving and money-saving.
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.
Visit our booth / Contact us












Wins Another Invention Patent
Brilliant Glory, Continuing to Write a Brilliant Chapter
Striving for "Innovation" and "Quality"
Focusing on Cutting-Edge Technologies
Creating New Momentum and New Advantages
Promoting the Continuous "Innovation" of New-Quality Productivity
On June 17th, our company was awarded another national invention patent. To date, the company has secured 162 national patents and 13 invention patents, and has been deeply involved in the formulation of eight national and industry standards. We continue to lead industry development with technological breakthroughs.

Overcoming challenges and achieving remarkable results
Attaching great importance to technological innovation
While pursuing superior quality, Fangkuai also attaches great importance to technological innovation.
Developing product diversity
To better meet the diverse needs of consumers, Fangkuai develops diverse product images during R&D and production.
Fangkuai family portrait

Gloriously writing a new journey
The company has always adhered to the philosophy of
"Building Character, Creating Quality Products"
Using technological R&D as the core driving force
Also promoting application
Effectively promoting technological advancement in the industry and engineering products
Future

Continued
Scientific and technological R&D and technological achievement transformation
Generate more core independent intellectual property rights
Solidly promote the company's high-quality development