Vacuum hot water boiler is a kind of boiler equipment that uses the characteristics of low-pressure and low-boiling water to quickly heat the sealed furnace filled with heating medium water to output high-temperature hot water. The boiling of hot water evaporates high-temperature water vapor, and the water vapor condenses on the heat transfer tube to heat the cold water in the heat transfer tube. Supply hot water. What are the characteristics of the vacuum hot water boiler when it is operated? Let Zhengzhou Fangkuai boiler manufacturer tell you the answer.
1. The inside of the vacuum hot water boiler is under negative pressure. If you follow the operating instructions, there will never be an explosion, and the safety is very good.
2. The internal design of the vacuum hot water boiler is reasonable, the bearing steel has high temperature and high separation, which can extend the service life to more than 2-3 times. The design life is up to 25 years.
3. The overall design of the vacuum hot water boiler is very scientific and reasonable, and the layout is compact. Compared with ordinary hot water boilers, the floor space is saved by about 50%. There is basically no requirement for the boiler house, and the infrastructure cost is very low.
4. The vacuum hot water boiler exchanges heat in the machine body. The operating efficiency of the whole machine is as high as 107%. It can provide 80℃ hot water within 2 to 3 minutes after startup, which greatly shortens the preheating period and reduces energy consumption.
5. The vacuum hot water boiler adopts automatic control, intelligent, unmanned or remote network control; the boiler has a built-in stainless steel heat exchanger, and the output water quality is free of any pollution.
6. The vacuum hot water boiler adopts the direct heating mode. Compared with indirect heating (boiler + external heat exchanger + circulating water pump + material + installation cost), it can save at least 30-40% of installation cost. In addition, the vacuum hot water boiler has high operating efficiency, fast heating, and good heat exchange, which can save fuel costs by 20-30%.
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.






