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Anatomy

Hearth

The floor of the firebox together with the protective extension in front of it.

All glossary terms

What is Hearth?

Made up of two parts: the inner hearth forming the firebox floor, and the hearth extension, the non-combustible projection out in front. Under the IRC the extension must run at least 16 inches deep for fireboxes under 6 sq ft and 20 inches for larger ones.

Related terms:FireboxHearth Extension

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