Which type of boiler can be made larger than others?

The type of boiler that can be made larger than others is the cast iron sectional boiler. This design features multiple sections that can be pieced together to form a larger unit. This modular approach allows for ease of installation and maintenance, as individual sections can be replaced or serviced without needing to replace the entire boiler.

In addition, cast iron sectional boilers are known for their durability and longevity, making them well-suited for high-capacity applications in commercial and industrial settings. They can handle higher steam production demands than other types of boilers, which is essential for large facilities requiring significant heating capabilities.

While fire tube and water tube boilers also can be large, they are generally limited by their construction and operation methods compared to cast iron sectional boilers. Fire tube boilers primarily rely on hot gases passing through tubes surrounded by water, which can limit their size due to pressure constraints. Water tube boilers, while capable of handling higher pressures than fire tube boilers, also have design limitations that affect scalability. Electric boilers tend to be smaller and less common for large-scale heating due to high energy costs and limited heat output compared to traditional boilers.