Leviticus 6:11-12

¹¹And he shall put off his garments, and put on other garments, and carry forth the ashes without the camp unto a clean place.

¹²And the fire upon the altar shall be kept burning thereon, it shall not go out; and the priest shall burn wood on it every morning: and he shall lay the burnt-offering in order upon it, and shall burn thereon the fat of the peace-offerings.