The statement that best describes the location of the sun according to the heliocentric model of the universe is: "The sun is located at the center of the universe."
However, it is important to clarify that in the context of our solar system, the sun is at the center of the solar system but not the center of the universe as a whole. The heliocentric model specifically refers to the sun being at the center of the solar system, around which the planets orbit.