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Rocket Grill!

Step 4Fuel/Air Plate

Fuel/Air Plate
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Another distinct feature of the Rocket Grill is the Fuel/Air plate.

It holds the fuel up and in place, let allows plenty of air to naturally draft into the grill and up through the fuel for a very hot and clean burn.

The plate needs to be able to hold up to high temperatures.

Take some scrap steel plate and cut it to a width just slightly smaller than the diameter of the feeder pipe, and about the same length. This way, the plate sits INSIDE the feeder pipe, and divides it to an upper and lower area.

Fuel goes in ABOVE the plate, and air goes in BELOW the plate.

The plate has holes or slots in it in the far end so that it supports the fuel, but allows plenty of air through. The plate I used was already slotted, but I added a few more for good measure.

You could also use a heavy-duty grate, or weld together re-bar to serve the same purpose.

When you are ready, just slide the plate into the feeder tube. Gravity and friction will hold it in place for you.
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Author:bennelson(300MPG.org)
Ordinary guy with no special skills, just trying to change the world one backyard invention at a time. See more at: http://300mpg.org/ On Twitter - @300MPGBen and at Ecoprojecteer.net