Fire Glass for a Fireplace

`Wt = 1/2 * D*(F+B) * Dp*(89.6."lb/ft"^3)`

Enter a value for all fields

The Glass Rocks for a Fireplace calculator computes the pounds and number of bags of fire glass needed for a fireplace.

INSTRUCTIONS: Choose units and enter the following:

(F) Front of Fireplace
(B) Back of Fireplace
(D) Depth of Fireplace
(Dp) Depth of glass in Fire Pit

Glass for Fireplace (Wt): The calculator returns the weight of the glass rocks needed in pounds and the approximate number of 10 pound and 25 pound containers (cartons or bags).

The Math / Science

Propane and nature gas fireplaces provide warmth and atmosphere to your home or yard. Your gas fireplace needs to diffuse the gas on the fire pit surface through an attractive BUT non-combustible material like lava rocks or glass.

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