Draw (in the context of a pizza oven or fireplace)

The draw effect, integral to the functioning of a fireplace or pizza oven, is a phenomenon facilitated by the chimney. As the fire burns, hot air and combustion byproducts, including smoke, rise naturally due to the principle of convection. The chimney, a vertical passage, plays a pivotal role in harnessing this upward flow. Its design involves a balance of height, diameter, and insulation, creating a channel for the rising warm air to escape. This upward movement induces a pressure difference, drawing in fresh air from the room to feed the fire and ensuring that smoke is efficiently expelled outside. The draw effect is essential for the fireplace and pizza oven’s optimal performance, and for indoor installations, it also important for maintaining a safe and smoke-free indoor environment.