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Anatomy

Firebox

The chamber where the fire actually burns.

All glossary terms

What is Firebox?

The brick or refractory-panel-lined chamber that contains the fire. Cracked refractory panels are a fire-safety code violation — heat can transfer to combustible framing behind. Panels must be in-spec for the fireplace make/model.

Related terms:Refractory PanelHearth

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