Every winter, there will be a lot of users asking about the "method of using natural gas hot water boilers". According to this question, Xiaobian asked our professional boiler technicians and summarized them below. You can refer to them.
Let us take the example of one of the FANGKUAI Boiler star products, the condensing gas hot water boiler.
1. Firstly, it is necessary to carry out safety inspections on the boiler, whether the valves of the valves are loose, whether the drain port of the drain is open or not, and so on, to ensure that the safety indexes of the boilers are at normal levels.
2. After connecting the waterway system, fill the system with water, and observe the water pressure change of the internal pressure gauge of the boiler. When the limit value is reached, stop the water injection and check whether there is loose leakage at the connection of each waterway.
3. Turn on the power, press the power button, let the water pump rotate, discharge the air in each heat exchanger coil or unscrew the manual exhaust valve at the front end of the heat exchanger to exhaust. After the exhaust water pressure drops, the water is replenished. Until the water pressure reaches the working range.
4. After filling the water, the pipe is connected well, the gas source is turned on, the ignition operation is performed, and the red signal light on the sub-control board is observed. After the power is turned on, the backlight is slowly flashed, and the ignition flashes rapidly after successful ignition.
5. The boiler has adjusted various parameters before leaving the factory, and the user does not need to adjust it at the site. However, if the local natural gas calorific value, air pressure or altitude is changed (compared with the plain area), it must be burned. System analysis and adjustment, the specific operation method needs to be analyzed and adjusted by the professional technicians according to the combustion system.
If you want to know more about gas hot water boilers, please continue to pay attention to FANGKUAI Boiler Co., Ltd., we will continue to provide you with troubleshooting.


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.




