How can Bernoulli's principle be used in explaining the reasons behind air going up the chimney of a house? How can Bernoulli's principle be used in explaining the reasons behind air going up the chimney of a house? The hot ashes seek the cooler outside air. Air blowing across the top of the chimney reduces the pressure above the chimney. The gravitational potential energy is lower above the chimney. The air above the chimney attracts the ashes.