A cooking-stove is a large iron box set on legs. It has a fire-box in the front, the sides of which are lined with fire-proof material similar to that of which bricks are made. The bottom is furnished with a movable iron grate. Underneath the fire-box is a space which extends from the grate to a pan for receiving ashes. At the back of fire-box is a compartment called the oven, accessible on each side of the stove by a door. Between the oven and the top of the stove is a space for the circulation of air.
The damper below the fire-box is known as the front damper, by means of which the air supply is regulated, thus regulating the heat.
The oven is heated by a circulation of hot air. This is accomplished by closing the oven-damper, which is situated near the oven. When this damper is left open, the hot air rushes up the chimney. The damper near the chimney is known as the chimney-damper. When open it gives a free outlet for the escape of smoke and gas. When partially closed, as is usually the case in most ranges, except when the fire is started, it serves as a saver of heat. There is also a check, which, when open, cools the fire and saves heat, but should always be closed except when used for this purpose.
A portable range is a cooking-stove with one door; it often has an under oven, of use for warming dishes and keeping food hot.
A set range is built in a fireplace. It usually has two ovens, one on each side of the fire-box, or two above it at the back. Set ranges, as they consume so large an amount of fuel, are being replaced by portable ones.