Things You'll Need:
- Rag or pot holder
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Step 1
Locate the security tab. One of the vent slots will have a 1-inch horizontal oval shape with a brass bead over the left side. The tab will be in the center of most fireplace vents.
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Step 2
Release the security tab. Pinch the bead between your fingers and turn it slightly clockwise. Use a rag or pot holder if a fire is burning. It should only take a half turn to free the tab.
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Step 3
Slide the cover open. Push the tab to the right side of the oval opening. This will slide the metal back panel into a position that lines up its hole pattern with the holes in front to create multiple rows of small openings.








