Example image of eyePlorer eyePlorer map for 'Furnace': Heat Latin Oven Balakot Indus Valley Civilization Ceramic American English Boiler Canadian English Heater House Kiln British English Fractional distillation Industry Metal Oil refinery Ore Resource extraction Smelting English language Combustion Electric arc furnace Induction furnace Induction heating Earth's atmosphere Household Major appliance Steam Water Coal Fuel Fuel oil Liquefied petroleum gas Natural gas United States Wood Electrical resistance Chimney Exhaust Thermal efficiency Efficient energy use Cogeneration Exergy efficiency Heat engine Second law of thermodynamics Condensation Condensing boiler Water vapor Acid