Many users will be confused by a number when they understand the FANGKUAI Boiler. Why is the thermal efficiency of the boiler produced by the fast-growing boiler reaching 108%?
The input of the condensing gas boiler is a certain volume of gas multiplied by the calorific value of the gas (the influence of the temperature, pressure and humidity of the air should be taken into account when calculating the heat), and the difference of the condition factors determines the calorific value of the gas has a high calorific value and a low calorific value. Points.
High calorific value: 1 standard cubic meter of gas is completely cooled after the flue gas is cooled to the original temperature, and the water vapor in the flue gas is discharged in the state of condensed water.
Low calorific value: 1 standard cubic meter of gas is completely cooled after the flue gas is cooled to the original temperature, but the water vapor in the flue gas is still the heat released by the steam state.
Obviously, the high calorific value of the gas is numerically greater than its low calorific value, and the difference is the latent heat of vaporization of the water vapor. The actual low-heat value of gas is commonly used in the actual engineering of industrial and civil gas applications. If calculated according to the low calorific value, the condensing gas boiler can absorb the latent heat of vaporization, and its thermal efficiency may reach 108%.
Then, why is the calorific value of the gas calculated according to the low calorific value not calculated according to the high calorific value?
This is because, in fact, the calculation of the calorific value of the gas by the operating instrument is to detect the volume and temperature of the flue gas generated by the complete combustion of the gas, and it is difficult to completely collect and cool the flue gas to the original temperature according to the definition of high and low calorific value of the gas. of. It can only be high-temperature discharge, measure the flue gas flow, calculate its volume and measure the temperature of the flue gas, calculate the heat through the heat capacity ratio of the flue gas; while the water vapor in the high-temperature flue gas is not cooled, it is still in the steam state. . This is consistent with the definition of low calorific value of gas, which is still a requirement for steam. Therefore, the calorific value of the gas in the thermal efficiency of the gas boiler is calculated based on the low calorific value. Then the gas condensing boiler absorbs the latent heat of vaporization, and its thermal efficiency will reach 108%.
September 24–27, 2026 | Booth 4A27 | Cairo International Conference Center (CICC), Egypt
Dabonn Energy is excited to announce its participation in EGYPT STITCH & TEX EXPO 2026, one of the leading textile machinery and technology exhibitions in North Africa and the Middle East. The exhibition will take place from September 24 to 27, 2026, at the Cairo International Conference Center (CICC) in Nasr City, Cairo, Egypt.
Visitors are warmly invited to Booth 4A27, where Dabonn Energy will present its latest industrial boiler technologies and energy-efficient steam solutions designed specifically for the textile industry.
Steam plays a critical role throughout textile manufacturing, including dyeing, printing, bleaching, washing, drying, and finishing. A reliable boiler system directly affects production efficiency, energy consumption, and operating costs.
At EGYPT STITCH & TEX EXPO 2026, Dabonn Energy will showcase a range of industrial boiler solutions engineered to meet the demanding requirements of textile factories, including:
Our engineering team will provide professional consultation to help visitors select the most suitable boiler system based on production capacity, fuel availability, steam demand, and energy-saving goals.
As textile manufacturers continue to pursue higher efficiency and lower operating costs, energy-saving boiler systems have become increasingly important.
Dabonn Energy integrates advanced combustion technology, intelligent control systems, and optimized heat transfer designs into every boiler solution. These technologies help customers achieve:
Whether powered by natural gas or biomass fuels, our industrial boilers are designed to deliver dependable performance while supporting sustainable manufacturing.
During the exhibition, visitors will have the opportunity to meet directly with Dabonn Energy's technical and sales specialists to discuss a wide range of industrial heating solutions.
Topics include:
Our team will also share successful application cases from textile manufacturers across different countries and explain how efficient boiler systems can improve productivity while reducing energy costs.
Egypt continues to strengthen its position as an important textile manufacturing hub in Africa and the Middle East. With increasing investment in textile production, the demand for reliable and energy-efficient steam generation equipment is also growing.
By participating in EGYPT STITCH & TEX EXPO 2026, Dabonn Energy looks forward to establishing new partnerships with textile manufacturers, engineering companies, distributors, and industrial investors throughout Egypt, North Africa, and neighboring regions.
We remain committed to delivering high-quality industrial boiler equipment backed by professional engineering support and comprehensive after-sales service.
We sincerely invite all visitors attending EGYPT STITCH & TEX EXPO 2026 to stop by Booth 4A27 and explore how Dabonn Energy can help improve the efficiency and sustainability of your textile production.
Exhibition: EGYPT STITCH & TEX EXPO 2026
Venue: Cairo International Conference Center (CICC), Nasr City, Cairo, Egypt
Date: September 24–27, 2026
Booth Number: 4A27
We look forward to meeting customers and partners from around the world and discussing innovative industrial boiler solutions for the future of the textile industry.
Recently, Zhengzhou Fangkuai Boiler Sales Co., Ltd. traveled to Dhaka, the capital of Bangladesh, to attend the Bangladesh International Textile, Knitwear & Garment Industry Exhibition (BTKG 2026). It showcased industrial thermal equipment and system solutions adapted to the whole process of textile printing and dyeing, actively expanding the South Asian market.
Bangladesh is an important global producer and exporter of textiles and garments. As a pillar local industry, the textile sector has long-term and strong demand for high-efficiency, stable and energy-saving industrial boilers and thermal equipment, with broad market potential. This exhibition participation is an important measure for Zhengzhou Fangkuai Boiler Sales Co., Ltd. to advance its internationalization strategy and further explore overseas markets.
Relying on its technological accumulation and manufacturing advantages in the field of thermal energy equipment, the company provides targeted thermal energy solutions for local textile, printing and dyeing, garment manufacturing and other industries, helping enterprises improve production efficiency and reduce operating costs. In the future, Zhengzhou Fangkuai Boiler Sales Co., Ltd. will continue to focus on overseas market demands, continuously optimize its product and service system, facilitate the high-quality development of the global textile industry with professional and reliable products, and steadily enhance the brand’s competitiveness and influence in overseas markets.
Trust stems from quality
At the beginning of the new year, Fangkuai Boiler and a leading domestic new energy company have reached another important cooperation, successfully signing an order for a total of 500 steam tons.
