At present, centralized heating is the preferred method of heating in most cities and regions. Compared with decentralized heating, it is more convenient and better controlled. The hot water boiler is the main heat energy equipment for central heating. Zhengzhou Fangkui Boiler Factory will come to briefly talk about this type of hot water boiler.
In central heating, if a gas-fired hot water boiler is used, how to select and quote?
In central heating, if a gas-fired hot water boiler is used, the type selection mainly depends on the heating area, and the specific type and specifications of the boiler are determined by the size of the heating area, so that the wrong selection can also be avoided. The quotation of this type of boiler is based on the tonnage of the boiler.
What is the 5 tons of 5 tons hot water boiler? And can the sewage outlet on the hot water boiler be omitted?
For a 5 ton hot water boiler, 5 ton refers to the thermal power of the boiler. If converted, it is equivalent to 3.5 MW. The sewage outlet on the hot water boiler must be connected, and there must be no omissions. Moreover, the location of the sewage is also different and cannot be treated uniformly.
The boiler model, which is expressed as WNS4.2-1.0/115/70-Q, what does it say?
If the boiler model is expressed as WNS4.2-1.0/115/70-Q, it means that this is a horizontal hot water boiler, because W refers to horizontal, N refers to internal combustion, and S refers to the room Burning. In addition, it can also be known that the heating capacity of the boiler is 4.2MW per hour, which is equivalent to 6 tons, and its rated pressure is 1MPa. In addition, the outlet and return water temperatures are 115°C and 70°C, respectively. Fuel is natural gas, liquefied gas, city gas and other gas fuels.


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.




