When communicating with the technical engineers of Zhengzhou Fangkuai Boiler Factory, some users discovered that the thermal efficiency of the boiler equipment introduced by Zhengzhou Fangkuai Boiler Factory could exceed 100% and reach as high as 107%. What's the reason? Is it because the boiler manufacturer arbitrarily advocates for the sale of boiler equipment? Let's find out.
For oil and gas boilers, there are low calorific value and high calorific value. The low calorific value is the closest to the actual calorific value of an industrial boiler during combustion, and is often used in design calculations. That is to say, the efficiency of the original boiler does not consider the part of the latent heat of gasification that accounts for 11% of the exhaust gas. The thermal efficiency of general oil-fired gas boilers Between 90~92%. When the boiler efficiency is calculated based on the low calorific value, if the condensation technology is used to utilize the latent heat of vaporization and part of the sensible heat in the exhaust gas, the efficiency will be greater than 100%.
Is it necessary for oil and gas boilers to have a condenser? According to the TSG G0002-2010 "Regulations for the Supervision and Management of Boiler Energy Conservation Technology" promulgated by the General Administration of Quality Supervision, Inspection and Quarantine on August 30, 2010, these regulations are based on the "Special Equipment Safety Supervision Regulations" and "Energy Consumption Supervision and Administration Measures for Special Equipment" , Put forward clear requirements for energy-saving work in boiler design, manufacturing, installation, transformation, maintenance and use, which is of great significance to standardizing boiler energy-saving work.
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