Nov 07, 2016 · Watertube steel boilers pass hot combustion gases over water-filled tubes.Sizes for packaged watertube boilers range from small, low pressure units (e.g., around 10 MMBtu/hr) to very large, high-pressure units with steam outputs of about 300 MMBtu/hr.
Read MoreBoilers are used to generate steam or hot water and can be fired by natural gas, fuel oil, or coal. a. The following boilers have combustion efficiencies between 78% and 86%. Firetube steel boilers are constructed so that hot gases from the combustion chamber pass …
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