Trapezoid-shaped Throat Opening

Use this calculator to determine cut-out size for your throat opening.

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PLANETCALC, Trapezoid-shaped Throat Opening

Trapezoid-shaped Throat Opening

Enter the width of your firebox
Enter the height you want for a grease dam at the bottom of the tank.
Top Length
20.785
Bottom Length
9.592
Height of cut-out
5
Throat area of cut-out.
75.94
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PLANETCALC, Trapezoid-shaped Throat Opening

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