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Definition of firebox
1 : a chamber (as of a furnace or steam boiler) that contains a fire
2 : a box containing an apparatus for transmitting an alarm to a fire station
From the M-W Editors
Recent Examples of firebox from the Web
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Getting heat evenly from the firebox to the other side of the cooker is a challenge, especially when meat is in there, blocking airflow.
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Periodically somebody would reach into a firebox whose interior looked like a medieval painting of hell and fill a scuttle with coals to set under one of the three stainless-steel grills.
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Another option to consider is fireplace inserts – self-contained units that are designed to fit within the firebox of a standard built-in fireplace.
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Weekly During heavy periods of use, clean the wood-burning firebox.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'firebox.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use of firebox
1735
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