Coal-fired boilers are already a backbone of industrial and power generation sectors for upwards of a century. Despite growing curiosity about renewable energy, coal-fired systems continue to play a crucial role in many countries due to their ability to produce a lot of energy at relatively low priced. https://vaughan-holden-2.technetbloggers.de/understanding-coal-fired-boilers-how-they-work-benefits-and-environmental-impact