What is one major disadvantage of a fire tube boiler?

A major disadvantage of a fire tube boiler is its inefficiency. Fire tube boilers typically have a lower efficiency than water tube boilers, particularly when it comes to the production of steam. This lower efficiency can result from several factors, including the limitations in heat transfer and the design of the boiler, which can lead to higher fuel consumption and increased operational costs. The heat exchange surface area in a fire tube boiler is often less effective, causing the boiler to work harder to produce the same amount of steam compared to other designs. Understanding this characteristic is essential for engineers and operators as they assess the suitability of different boiler types for specific applications.