- Author
- Loftus, J. J. | Peacock, R. D.
- Title
- Evaluation of Thimble-Chimney Connector (Wall Pass-Through) Systems for Solid Fuel Burning Appliances.
- Coporate
- National Bureau of Standards, Gaithersburg, MD
- Sponsor
- Consumer Product Safety Commission, Bethesda, MD Department of Energy, Washington, DC
- Report
- NBSIR 84-2969, November 1984, 66 p.
- Distribution
- AVAILABLE FROM National Technical Information Service (NTIS), Technology Administration, U.S. Department of Commerce, Springfield, VA 22161. Telephone: 1-800-553-6847 or 703-605-6000; Fax: 703-605-6900; Rush Service (Telephone Orders Only) 800-553-6847; Website: http://www.ntis.gov
- Keywords
- chimneys | fire codes | radiant energy | residential buildings | stoves | walls | wood
- Abstract
- This report is part of an ongoing project at the National Bureau of Standards (NBS) to evaluate the fire safety of solid fuel burning appliance installations in residential homes and buildings. Previous work included evaluations of different protection devices designed to shield room walls and ceilings from the effects of radiant energy from hot appliance and chimney connector pipe surfaces, the objective being to determine which systems would help maintain surface temperatures on combustibles within code recommended temperature levels. For this segment a total of 17 different thimble-chimney connector (wall pass-through) systems connected to chimney connector pipes from a stove was evaluated for their ability to provide thermal protection for combustibles (wood studs and headers, etc.) in room walls. Flue gases passing through the thimbles were monitored over a range of 538 to 649 Deg. C (1000 to 1200 Deg. F) and temperature rise measurements were made on the surfaces of the combustibles located in proximity to the thimbles. Code acceptable temperature rise values were found for 9 of the 17 thimble systems tested at the 538 Deg C. (1000 Deg. F) exposure, for 6 thimbles at 593 Deg. C (1100 Deg. F) and for 4 thimbles at 649 Deg. C (1200 Deg. F).