Soak wood chips (Mesquite or Hickory) in enough water to cover about an hour before cooking time. Drain chips. In covered grill place SLOW coals on both sides of drip pan. Sprinkle coals with some dampened wood chips. Place ribs, bone side down on grill. Replace cover. Cook ribs till done, about 1 1/2-2 hours, adding more wood chips every half hour.
Meanwhile, in saucepan mix tomato soup, wine, onion, cooking oil, mustard, chili powder, paprika, celery seed and 1/4 tsp. salt. Heat sauce at side of grill.
Brush ribs with sauce. Grill, uncovered, about 20 minutes more, brush ribs frequently with sauce.
4 pounds beef plate short ribs
10 1/2 ounces condensed tomato soup
3/4 cup dry red wine
1/4 cup finely chopped onion
2 tablespoons cooking oil
1 tablespoon prepared mustard
2 teaspoons chili powder
1 teaspoon paprika
1/2 teaspoon celery seed