- Author
-
Kao, J. Y.
|
Ward, D. B.
|
Kelly, G. E.
- Title
- Flame Roll-Out Study for Gas Fired Water Heaters.
- Coporate
- National Institute of Standards and Technology, Gaithersburg, MD
- Sponsor
- Consumer Product Safety Commission, Washington, DC
- Report
-
NBSIR 88-3724,
March 1988,
157 p.
- Distribution
- Available from National Technical Information Service
- Keywords
-
heaters
|
flame research
|
safety
|
tests
- Identifiers
- flame roll-out; gas fired water heater; gas water heater; water heater test
- Abstract
- Five gas-fired water heaters (four natural gas and one LP gas) were tested in laboratory with simulated home conditions to evaluate their flame roll-out characteristics. Simulated variables were flue blockage, space pressure depression, access door status (in-place and not in-place), and other related factors. Test results were compared with those based on the proposed ANSI test method. The testing concludes that, in addition to flue blockage, pressure depression and door status are major factors in inducing heater flame roll-out; that poor draft hood performance contributes to the likelihood of flame roll-out; that the proposed ANSI test method should add a temperature criterion for determining flame roll-out; that the proposed ANSI blocked flue test appears to be adequate for units equipped with thermal spill switches located at their access doors area.