The Caldera Cone's 12-10 burner has an interesting and unusual design. While the 12-10 has holes in the side of the body of the burner, it is not a side jet stove, at least not in the conventional sense. With a typical side jet burner, the flames burn out from the jets.
With a 12-10 burner, the flames from the "jets" basically burn in to the burner. If you look closely, you can see the jets burning within.