This seems like a bad idea to me.

Old Tires Rolled Into Lump Make Odorless Fuel
HEREAFTER you need not worry about the disposition of all your old auto tires, for believe it or not you can make use of them as fuel. After you have gathered up a number of discarded tires proceed as follows: Take a sharp knife and cut a slash in the side wall just about an inch above the bead, which should then be removed. Then cut the tire crosswise and roll it up as if it were a carpet or rug and tie it securely around the center with a heavy piece of wire. Place this roll in an open fireplace and you will have an intense heat for about four hours, and there will not be the slightest smell of burning rubber. Two or three rolls at a time will easily keep a fair-sized room comfortably warm.— Edward Sievers.