What types of fuels can be used in a boiler?

Boilers can operate using a variety of fuel sources, and understanding the available options is essential for efficient and safe operation. The correct answer identifies natural gas, propane, oil, and biomass as the fuels that can be utilized in a boiler.

Natural gas is a commonly used fuel due to its efficiency and lower emissions compared to other fossil fuels. Propane, also a clean-burning fuel, is often used when natural gas is not available. Oil has historically been a prevalent choice, especially in areas where natural gas infrastructure is limited. Biomass represents a renewable energy source derived from organic materials, making it an environmentally friendly alternative that is growing in popularity.

This range of fuel types allows for flexibility in operation and the ability to meet energy demands while considering environmental impacts, regulatory requirements, and availability of resources. Each fuel has distinct properties and handling requirements, which are important for boiler operation and maintenance.

While the other options mention limited fuel types or incorrect combinations, the inclusion of all four fuel types in the correct answer provides a comprehensive overview of what a boiler may utilize, aligning with standard practices in the industry.