hearth

The place in a home where a fire is or was traditionally kept for home heating and for cooking, usually constituted by at least a hearthstone and often enclosed to varying degrees by any combination of reredos, fireplace, oven, smoke hood,

For by the hearth the children sit ⁠Cold in that atmosphere of Death, ⁠And scarce endure to draw the breath, Or like to noiseless phantoms flit: […]

A hearthstone, either as standalone or as the floor of an enclosed fireplace or oven.

cooking on an open hearth

When the flames at last began to flicker and subside, his lids fluttered, then drooped ; but he had lost all reckoning of time when he opened them again to find Miss Erroll in furs kneeling on the hearth and heaping kindling on the coals, and her pretty little Alsatian maid beside her, laying a log across the andirons.

A fireplace: an open recess in a wall at the base of a chimney where a fire may be built.

The lowest part of a metallurgical furnace.

A brazier, chafing dish, or firebox.