N furnace, stove, kiln, oven, cracker, hearth, focus, combustion chamber, athanor, hypocaust, reverberatory, volcano, forge, fiery furnace, limekiln, Dutch oven, tuyere, brasier, salamander, heater, warming pan, boiler, caldron, seething caldron, pot, urn, kettle, chafing-dish, retort, crucible, alembic, still, waffle irons, muffle furnace, induction furnace, electric heater, electric furnace, electric resistance heat, open-hearth furnace, fireplace, gas fireplace, coal fire, wood fire, fire-dog, fire- irons, grate, range, kitchener, caboose, camboose, poker, tongs, shovel, ashpan, hob, trivet, andiron, gridiron, ashdrop, frying-pan, stew-pan, backlog, hearth, inglenook, oil burner, gas burner, Franklin stove, pot-bellied stove, wood-burning stove, central heating, steam heat, hot water heat, gas heat, forced hot air, electric heat, heat pump, solar heat, convective heat, hothouse, bakehouse, washhouse, laundry, conservatory, sudatory, Turkish bath, Russian bath, vapor bath, steam bath, sauna, warm bath, vaporarium.

For further exploring for "electric furnace" in Webster Dictionary Online