You are here:
EMISSIONS FROM OUTDOOR WOOD-BURNING RESIDENTIAL HOT WATER FURNACES
Citation:
Valenti, J. C. AND R. K. Clayton. EMISSIONS FROM OUTDOOR WOOD-BURNING RESIDENTIAL HOT WATER FURNACES. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/R-98/017 (NTIS PB98-131980), 1998.
Impact/Purpose:
information
Description:
The report gives results of measurements of emissions from a single-pass and a double-pass furnace at average heat outputs of 15,000 and 30,000 Btu/hr (4.4 and 8.8 kW) while burning typical oak cordwood fuel. One furnace was also tested once at each heat output while fitted with a prototype catalytic unit installed in the combustion chamber. Emissions measured included: EPA Method 5G particulates, semivolatile and condensible organics, 20 target polycyclic aromatic hydrocarbon (PAH) compounds, and carbon monoxide. emission results are presented in terms of rate per hour, quantity per unit weight of wood burned, and quantity per unit of heat delivered. Delivered efficiencies are also presented. Compared to a wide range of residential heating options, these furnaces' emissions were of the same order as other stick wood burning appliances. (NOTE: Modern outdoor residential wood-burning hot water furnaces are freestanding units situated outside the envelope of the structure to be heated. They typically consist of a firebox and water reservoir, assembled in a horizontal configuration. Hot combustion gases flow from the firebox at one end, through channels or tubes in the water reservoir, to the stack. The gases may pass through the water reservoir once to the stack at the end opposite the firebox (single-pass), or they may make two passes through the water reservoir.)