A space over, or in front of, a boiler furnace where the gases from the fire become more thoroughly mixed and burnt. [Webster 1913 Suppl.]

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.

air chamber, anechoic chamber, boron chamber, bubble chamber, burial chamber, chamber, chamber music, chamber of commerce, chamber orchestra, chamber pot, cloud chamber, combustion, council chamber, cremation chamber, death chamber, echo chamber, firing chamber, gas chamber, gun chamber, hyperbaric chamber, internal combustion, ionization chamber, lock chamber, piston chamber, presence chamber, resonating chamber, spark chamber, spontaneous combustion, star chamber, supply chamber, torture chamber, vacuum chamber, wilson cloud chamber