Updated Revisions to Method 28
Revisions to EPA’s Method 28 Outdoor Wood-Fired Hydronic Heaters (OWHH) have recently been finalized. The Method’s title has dropped “Outdoor” because it now allows for the qualification of indoor hydronic heaters, too. The new name is EPA Method 28 WHH and the revisions will improve reproducibility and accuracy of results. The revised method can be found at www.epa.gov/burnwise/pdfs/owhhphase2agreement.pdf and start on page 17. The revisions to EPA’s Hydronic Heater Partnership Agreement at this same address will be completed next month.
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