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Furnace vs. Kiln: What's the Difference?

Furnace and Kiln Definitions

Furnace

An enclosure in which energy in a nonthermal form is converted to heat, especially such an enclosure in which heat is generated by the combustion of a suitable fuel.

Kiln

Any of various ovens for hardening, burning, or drying substances such as grain, meal, or clay, especially a brick-lined oven used to bake or fire ceramics.

Furnace

An intensely hot place
The furnace of the sun.
An attic room that is a furnace in the summer.

Kiln

To process in one of these ovens.

Furnace

A severe test or trial
Endured the furnace of his friends' blame after the accident.
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Kiln

An oven or furnace or a heated chamber, for the purpose of hardening, burning, calcining or drying anything; for example, firing ceramics, curing or preserving tobacco, or drying grain.

Furnace

(UK) An industrial heating device, e.g. for smelting metal or baking ceramics.

Kiln

To bake in a kiln; to fire.
When making pottery we need to allow the bisque to dry before we kiln it.

Furnace

A device that provides heat for a building; a space heater.

Kiln

A large stove or oven; a furnace of brick or stone, or a heated chamber, for the purpose of hardening, burning, or drying anything; as, a kiln for baking or hardening earthen vessels; a kiln for drying grain, meal, lumber, etc.; a kiln for calcining limestone.
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Furnace

(colloquial) Any area that is excessively hot.

Kiln

A furnace for burning bricks; a brickkiln.

Furnace

(figurative) A place or time of punishment, affliction, or great trial; severe experience or discipline.

Kiln

A large oven for firing or burning or drying such things as porcelain or bricks

Furnace

To heat in a furnace.

Furnace

To exhale like a furnace.

Furnace

An inclosed place in which heat is produced by the combustion of fuel, as for reducing ores or melting metals, for warming a house, for baking pottery, etc.; as, an iron furnace; a hot-air furnace; a glass furnace; a boiler furnace, etc.

Furnace

A place or time of punishment, affiction, or great trial; severe experience or discipline.

Furnace

To throw out, or exhale, as from a furnace; also, to put into a furnace.
He furnacesThe thick sighs from him.

Furnace

An enclosed chamber in which heat is produced to heat buildings, destroy refuse, smelt or refine ores, etc.

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