Stress testing of woodstoves is a way to test the durability of woodstove models in the laboratory in a one to two week time frame. Two avenues of research have been taken in developing the stress test protocol, with changes in particulate emission rates measured and physical degradation documented. First, the performance of woodstoves while in actual in-home use has been observed over the course of two heating seasons in four communities: Medford and Klamath Falls, OR, Crested Butte, CO, and Glens Falls, NY. Second, the laboratory 'stressing' of various woodstove models under high temperature operation was conducted on eight stoves.