What is fireplace hearth?

What is fireplace hearth?
A fireplace hearth is the floor area within a fireplace. It is made from noncombustible materials, such as brick or stone. ... Hearths and hearth extensions are designed to prevent sparks from leaving the fireplace and igniting nearby combustibles.

Reference:
Hearths and Hearth Extensions - InterNACHI
Aug 3, 2019

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