Imagine a vessel where fire or hot gas is trapped inside tubes, and then the outside of the tube is surrounded by water! So, because of the presence of fire inside the tube, it is called a fire tube boiler. The heat inside the tube from either the fire or the hot gas flows through the tube to reach the water. Examples will include the simple vertical boiler, Cochran boiler, Lancashire boiler, and the Cornish boiler, among many others, according to Amrit Kumar. 

Although Amrit, also claims that these equipment are good because they have simple designs and low maintenance costs, you don’t need much skill to operate them. They can be used in small industries. The treatment of feed water is not very necessary, they are less expensive than water tube boilers, for the same power output: he also writes that about the following disadvantages: 

Their maximum working pressure is only up to 20 bars, overall efficiency is only up to seventy five percent, they require more floor areas for a given output, their load fluctuates in ways that are not easy to handle and they are used mainly in small power plants. These boilers are mainly used in industrial sectors, in the railway industry and the marine industry. 

For the above industries to work, the need to go after the best manufacturers of boilers. They work with only the most trusted boiler manufacturers, vendors and suppliers in the industry. Based on their experience in the boiler industry over many years, they are careful to select a partner network of companies who meet their stringent requirements for product quality, innovative solutions and exceptional service. A company like Powerhouse has a reputation, built on ensuring that the products provided exceed customer’s requirements and expectations. So, they work with the following fire tube boiler manufacturers. 

Grundfos leads in advanced pump solutions, as well as water technology, with expertise in circulatory, submersible, and centrifugal pumps, allowing the creation of specialized solutions for any project requirement. Cleaver Brooks, the world’s premier manufacturer of high-quality in the industry, uniquely focuses on integrating and optimizing the boiler, burner and controls systems. For 65 years, BFS Industries has been producing quality boiler support products for 65 years, offerings a complete line of boiler room and diesel generator support equipment. Hurst makes boilers and boiler auxiliary equipment, with products that will fit most commercial and industrial boiler needs. For over 80 years, Columbia Boiler Company has been a leading manufacturer of small steel boilers, serving apartment buildings, hospitals, and much more. 

Faber Burner Company is family owned and manufacturers premium combustion equipment closing in on 100 years of operation. Others manufacturers include Oilon, whose systems are compatible with all industrial uses, Nebraska Boiler, a name synonymous to quality for more than 75 years, Industrial Steam, LES Boilers, Industrial Fuel Systems, Atlantic Feedwater Systems, and Wilson Engineering. The size of a boiler must match the energy and financial needs, for example if the boiler is over-sized, the power bills may be too high, if it is undersized, it might not produce enough power for the winter.