Name one key aspect of proper chimney drafting.

A key aspect of proper chimney drafting is ensuring that the chimney height is sufficient to create a proper draft. The height of the chimney plays a crucial role in establishing the necessary pressure difference that allows smoke and combustion gases to rise and exit the structure effectively. A taller chimney typically enhances the draft because it increases the height of the column of gases, which in turn improves the draw of air and helps maintain a consistent flow, reducing the risk of backdrafts or downdrafts.

Additionally, while other factors such as flue size and material contribute to overall chimney performance, the importance of having an adequately tall chimney cannot be overstated. It directly influences the effectiveness of venting, ensuring that harmful gases are expelled safely and efficiently from the appliance to the outside atmosphere.