To further promote clean production and strengthen industrial pollution prevention, the National Environmental Protection Bureau has focused on addressing pollution issues in the industrial sector. Energy conservation and efficiency improvement are key to solving environmental problems. The main source of pollution in industrial development is the use of coal-fired boilers, which has led to severe smog in many industrial cities across our country. In response to national requirements, it is imperative to vigorously reform coal-fired boilers, improve the ecological environment, and enhance the quality of people's lives. To this end, Yine Boiler has made tremendous efforts in response to the national call, phasing out coal-fired boilers and developing new types of gas heat-conducting oil boilers.

Coal-fired boilers are gradually being phased out of social production. Among the types that can currently replace coal-fired boilers, electric boilers, although they don't pose environmental pollution issues, are costly to operate, making them a losing proposition for users. Many factories would放弃 using electrically heated thermal oil boilers due to their high costs. Heavy oil and light diesel oil boilers have moderate operating costs but still face unresolved environmental pollution issues, which continue to contribute to air pollution. Biomass pellet fuel boilers have slightly higher operating costs than gas boilers. Thus, the best option for replacing coal-fired boilers is to promote the use of boilers known as "clean energy" solutions. The next challenge is how to achieve high heating efficiency with gas boilers after the boiler retrofitting.