Thermax offers Oil and Gas fired Shell Type Steam Boilers in capacities upto 25 tons per of steaming per hour. Shell Type Steam Boilers incorporate corrugated furnaces for boiler capacities of 4 TPH and above that give them a distinct advantage over plain furnace boilers. Corrugation in the Shell Type Steam Boilers minimizes thermal stresses and makes the furnace inherently flexible. By offering uniform stress distribution, corrugated furnaces ensure long life of the Shell Type Steam Boilers. Corrugation also helps in increasing the moment of inertia for a given thickness and a consequent increase in maximum possible operating pressure. Thermax Shell Type Steam Boilers are flexible in design and are capable of firing a wide range of fuels, including heavy fuels and dual fuel options. Shell Type Steam Boilers are known for their ruggedness, and high efficiency, even when firing difficult fuels.