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LONG-TERM PERFORMANCE OF EPA-CERTIFIED PHASE 2 WOODSTOVES, KLAMATH FALLS AND PORTLAND, OREGON: 1998/1999
Citation:
Fisher, L. H., J. E. Houck, P. Tiegs, AND J. F. McGaughey. LONG-TERM PERFORMANCE OF EPA-CERTIFIED PHASE 2 WOODSTOVES, KLAMATH FALLS AND PORTLAND, OREGON: 1998/1999. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-00/100 (NTIS PB2002-100136), 2000.
Impact/Purpose:
To Inform Public
Description:
The report gives results of an evaluation of the condition and air emissions from old, phase-2-certified wood heaters installed in homes and used regularly for hoe heating since the 1992/1993 heating season or earlier. (NOTE: Wood stoves have been identified as a major source of particulate and polycyclic organic matter (POM) emissions. For this reason, new source performance standards (NSPS) were promulgated for wood heaters. Wood heaters sold after July 1, 1992, had to be certi-fied for low emissions, meet the most stringent requirements of the NSPS, and are referred to as phase-2 certified. Of concern has been the fact that laboratory and field studies have shown that certified wood heaters can physically degrade with use, commensurately increasing their air emissions.) Sixteen stoves were evaluated in the study, eight each in Klamath Falls and Portland, Oregon. An extensive data base from 43-week-long test runs was developed. The particulate emission factors of the certified phase 2 stoves evaluated in this study appear to have increased with use but, on average, after about 7 years they still have lower emissions than uncertified conventional stoves. In addition, it was clear from the results that the emission rates for phase 2 stove models reported as part of the NSPS certification process do not represent emission levels of the same stove models in homes after extended use.