- are machines used to generate hot water or steam.
- are modular boilers that are limited to low-pressure steam or hot water applications.
- provide steam and heat for a larger complex heating system. Central boilers are often housed in a special environment with cooler temperatures surrounding them to prevent overheating.
- allow for fine-tuned control and provide high thermal efficiency.
- are water or water/steam units powered by electricity rather than gas or other fuel.
- use tube attachment techniques that are similar to those of the firetube boiler, but their combustion chambers are not round. Firebox boilers are compact, economical units that are typically used seasonally in low pressure steam or hot water applications in which efficiency is not a primary factor.
- are cylindrical vessels with the flame in the furnace and the combustion gases inside the tubes. The furnace and tubes are within a larger vessel, which contains the water and steam.
- , also called “bent tube boilers,” are a common type of boiler valued for their resistance to thermal shock. Flexible watertube boilers are used in low pressure steam or hot water applications and can be a part of a field erectable package.
- use natural gas to heat the water and generate the steam necessary for heating applications.
- are boilers whose primary purpose is the production of hot water.
- are compact boilers with high outputs that are used in high or low pressure or hot water applications. Membrane watertube boilers are ideal for applications in which space is limited.
- are used often in temporary shelter environments, such as military camps or for emergency boiler breakdown situations. Mobile boilers can vary greatly in size and capacity and be towed to a location via semi-trucks or small vehicles.
- are units that produce both heat and hot water to an environment.
- are boilers whose primary function is to produce steam. Steam boilers are a general type of boiler.
- are vertical boilers that have the burner located either at the bottom, middle or top. Tubeless boilers are easily operated boilers that have no tubes, but collect the steam over the water in a large jacket or “U” tube.
- are commonly used in steam trucks, buses, trams and portable equipment, such as donkey engines utilized for sawmilling and dock work. The design of the vertical tube boiler lends itself to rough handling while in steam, making it ideal for use in situations in which the work plant has to be moved frequently over rough terrain.
- make use of the rejected heat from other processes, such as gas turbines.
- are safe boilers that consist of a header drum to which the water tube pipes connect. The drum and the tubes are usually surrounded by an insulating jacket or brickwork, and the fire and products of combustion are directed to pass through the tubes a multiple number of times, horizontally or vertically.
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