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Details test and examination criteria for unvented heaters for use with natural, manufactured and mixed gases, liquefied petroleum gases, and LP gas-air mixtures. Such heaters are limited to Maximum input ratings of 40,000 Btu per hour.
Author | ANSI |
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Editor | ANSI |
Document type | Standard |
Format | File |
Confirmation date | 2013-08-07 |
ICS | 91.140.10 : Central heating systems
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Replace | ANSI Z 21.11.2a (2008) |
Year | 2013 |
Document history | ANSI Z 21.11.2a (2013) |
Country | USA |
Keyword | ANSI Z 21;ANSI 21;21;ANSI Z21.11.2a-2013 |