The direct effect of improving the thermal efficiency of gas-fired steam boilers is to reduce the operating input cost of the boiler, so it is very important for users who use the boiler. Zhengzhou Fangkuai Boiler Factory summarized some methods that can effectively improve the thermal efficiency of gas-fired steam boilers, let's take a look.
1. Reduce the exhaust temperature
At present, the high exhaust gas temperature of industrial boilers in my country is one of the main reasons for the low thermal efficiency of boilers. When the exhaust gas temperature of small boilers drops by 15-20 degrees Celsius, and for large boilers by 15 degrees Celsius, the thermal efficiency of natural gas boilers increases by 1%. Therefore, it is necessary to try to recover the waste heat of the flue gas to lower the exhaust gas temperature, reduce the exhaust heat loss q2, and save fuel.
2. Feed water softening treatment and condensate recovery
Boiler feed water softening treatment and condensate recovery are also measures to improve boiler thermal efficiency. The raw water contains various impurities and their fouling substances. If the water quality is not well treated, the boiler will foul. The thermal conductivity of scale is very low, so once the heating surface is scaled, the output of the natural gas boiler will decrease due to the increase of thermal resistance, coal consumption will increase, and the thermal efficiency of the boiler will decrease.
3. Keep the boiler running under rated load
When the natural gas boiler is overloaded, because the amount of fuel must be added, the coal seam must be thickened, the speed of the grate will increase, and the air supply must also be increased to meet the demand for load increase. The thickening of the coal seam and the acceleration of the grate speed will cause the incomplete combustion of the solids to lose their addition. Because of the addition of the air supply, the flue gas stays in the furnace for a short time. Some combustible gases are discharged with the flue gas before they are burnt. The heat loss of gas incomplete combustion increases.
At the same time, when the operation is overloaded, the temperature in the furnace increases due to the thickening of the coal seam, and the temperature of the exhaust gas increases accordingly, which increases the heat loss of the exhaust gas. When the boiler is operating at low load, the amount of coal burned is reduced, and the temperature in the furnace drops, which makes the combustion conditions worse, and the incomplete combustion loses q3 and q4. When the boiler load is only 50%, it is difficult to maintain stable combustion in the furnace because the temperature in the furnace drops significantly. The heat loss is relatively increased during low-load operation, so boiler overload or low-load operation will cause the thermal efficiency of the boiler to decrease.
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.
