Abandoned Teepee/wigwam Burner In Southwestern Oregon Stock Image

Teepee or wigwam burners are used to dispose of waste wood in logging yards and sawdust from sawmills by burning. As a result they produce a large quantity of smoke and ash, which is vented directly into the atmosphere without any sort of scrubbing or cleaning, contributing to poor air conditions wherever they are used.[citation needed] The burners are considered to be a major source of air pollution and are being phased out in most areas.