Which type of boiler is the most economical to build?

The firetube boiler is often considered the most economical to build primarily because of its simple design and lower manufacturing costs compared to other types of boilers. Firetube boilers consist of tubes that are surrounded by water, through which hot gases from the combustion process pass. This straightforward construction results in a more cost-effective assembly process, which typically requires less material and labor compared to watertube or electric boilers.

Additionally, firetube boilers are generally easier to install and maintain, which can further reduce overall expenses in terms of both initial investment and ongoing costs. Their efficiency in heating water and simplicity in operation contribute to their widespread use in many industrial and commercial applications, making them a commercially viable choice for facilities needing boiler systems.

While other boiler types such as watertube, electric, and steam have their own advantages, their complexity and higher material requirements often lead to increased costs for manufacturing and installation, making them less economical in comparison to firetube boilers.