Hot water boilers are indispensable thermal energy equipment in the field of heating and heating. There are also many matters that require special attention regarding the operation of hot water boilers. Zhengzhou Fangkuai Boiler Factory will come to answer them one by one.
What are the specific requirements for the feed water hardness of hot water boilers?
The requirements for the hardness of feed water for boilers such as hot water boilers are less than 0.6 mmol/liter. However, in order to avoid the problem of boiler fouling, which affects the boiler efficiency, it is carried out with reference to the steam boiler feed water standard to achieve the above purpose, because the feed water hardness of the steam boiler is required to be less than 0.03mmol/L, relative Strictly speaking.
The model of electric hot water boiler is WDR-95/70, so how should it be understood?
The electric hot water boiler is one of the hot water boilers, which uses electric energy to burn the boiler, and then, converts energy to achieve the purpose of use. And its model indicates that it is WDR-95/70, then its correct understanding is:
The preceding letter is the abbreviation of the model of the electric hot water boiler, and the following number 95/70 refers to the boiler's outlet and return water temperature in degrees Celsius.
Does the burner in the hot water boiler have a specific model? Can it be used universally?
There are many types of burners on hot water boilers, such as light oil burners, alcohol oil burners, heavy oil burners, natural gas burners, and biological particle burners. Therefore, there are different types and specifications of hot water boilers, which are not universal.


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.




