The phrase identifies a selected sort of granular materials generally utilized in out of doors heating home equipment, particularly provided by a big house enchancment retailer. This materials, typically composed of silica or different heat-resistant minerals, serves as a protecting layer inside the fireplace pit construction. For instance, when setting up or sustaining an out of doors fireplace function, people often supply this materials from nationwide chains equivalent to The House Depot.
Using a chosen substrate inside a hearth pit is crucial for a number of causes. It helps to distribute warmth evenly, stopping concentrated scorching spots that may injury the pit’s steel or stone construction. Moreover, the substrate acts as a barrier, defending the fireplace pit’s base from direct contact with excessive temperatures, prolonging its lifespan. The accessibility of this materials via established retail channels makes it a handy choice for shoppers looking for to soundly and successfully function their out of doors fireplace options.