... dense radiator pipes, which is filled with conduction oil to release the heat to the inside of the furnace.2.Equipped at ... boiling furnace to calcine, adopting heat conductive oil furnace as heat source Fuel coal, natural gas, heavy oil, diesel oil Main materials natural gypsum rock, ... s can reach 70-80%.(our company uses organic heat carrier hot oil boiler.) with steam,it can reach 57-67%,it ...