Caja China grill, famous for its unique top-down heating for slow-roasting. I have done whole chickens as shown in the pictures and a pig.

A caja china (also called a "Chinese box" or "Cajun microwave") is a large, enclosed roasting box that uses charcoal placed on a top tray to cook meats via intense radiant heat.

La Caja China Pig Roaster Model #1 70 lb $439.99.

This basic wood model roasts smaller pigs, up to 4-6 turkeys, or 16-18 chickens.

It features a metal-lined wooden or aluminum box, an internal meat rack with drip pans, and a top charcoal grid.How It WorksTop-down heat: Charcoal burns on a heavy-duty pan right on top of the lid, acting like an oven broiler from above.No flipping early: The meat sits inside on a rack, meaning whole pigs or large poultry roast evenly without needing to be turned during most of the cooking process.Fast cooking times: It can roast a 70-pound whole pig in about 4 hours by trapping and circulating radiant heat inside the enclosed chamber.Crispy skin: At the very end, ashes are cleared, and the skin is exposed or scored to blister into a crunchy texture.