According to the type of fuel used
{"Image DocumentName": "According to the type of fuel used", "Image ImageDescription": "Solid fueled boiler. Liquid fueled boiler. Gaseous fueled boiler. According to the method of circulation of water. Natural circulation boiler. Forced circulation boiler. According to the flow of water and flue gases. Fire tube boilers. Water tube boilers. Dept. of Mech & Mfg. Engg.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}