BLUE SKY PFP1513-WJ Owner's Manual page 7

HOW THE FIRE PIT WORKS
1. Outside air is pulled into the bottom ring of
holes on the burn chamber and moves through
the hollow wall up to the inside ring of holes.
2. The heated air is released through the inner
ring of holes into the top of the burn chamber,
infusing the fire with an extra boost of oxygen
which improves the burn.
3. The improved burn vaporizes wood particles,
creating little to no smoke or embers.
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