You put water into the boiler and can put hot coals or some sort of hot into the tray to boil the water. The item "Vintage Working Jensen MFG Co. Steam Engine Style 75 Jeannette, Pa. A" is in sale since Tuesday, August 23, 2016. This item is in the category "Toys & Hobbies\Vintage & Antique Toys\Other Vintage & Antique Toys".The seller is "mrexide99" and is located in Bluffton, Ohio. This item can be shipped to United States, to Canada, to United Kingdom, DK, RO, SK, BG, CZ, FI, HU, LV, LT, MT, EE, to Australia, GR, PT, CY, SI, to Japan, to China, SE, KR, ID, to Taiwan, TH, to Belgium, to France, to Hong Kong, to Ireland, to Netherlands, PL, to Spain, to Italy, to Germany, to Austria, RU, IL, to Mexico, to New Zealand, SG, to Switzerland, NO, SA, UA, AE, QA, KW, BH, HR, MY, CL, CO, CR, DO, PA, TT, GT, SV, HN, JM.