What is a primary reason fire tube boilers are preferred over water tube boilers?

Fire tube boilers are often preferred over water tube boilers primarily due to their lower initial cost and compact design. Fire tube boilers are simpler in construction, which allows for a less expensive manufacturing process. They typically require less material and involve easier installation compared to their water tube counterparts, leading to reduced overall expenses when setting them up.

Additionally, the compact nature of fire tube boilers makes them suitable for applications where space is limited. Since they are designed to contain hot gases and large amounts of water, the overall footprint can be smaller compared to water tube boilers that require more extensive piping and a larger surface area for heat exchange. This compactness allows for more flexibility in installation options.

On the other hand, while fire tube boilers may have advantages in cost and size, they generally have limitations in terms of pressure capabilities and efficiency, as well as higher maintenance requirements for larger-scale operations. However, novice operators or smaller installations find the advantages of cost-effectiveness and space-saving designs attractive, making fire tube boilers a popular choice for many applications.