The 20 minute Fire Rating is a valid label and are commonly referred to as "Smoke and Draft control door assemblies". Depending on the local fire code and the openings's application, these doors can be specified as either with or without a hose stream test.
1. 20 minute with hose stream: These are openings that have successfully passed a 20 minute fire test, the standard hose stream test and bare a label that specifically states "Twenty-Minute-Rating Fire Door".
2. 20 minute without hose stream: These are openings that have successfully passed a 20 minute fire test but were not subjected to the hose stream test. These doors bare a label that specifically states 'Twenty-Minute-Rating tested Without Hose Stream'.
3. 20 minute without locking/latching hardware: Some areas specify smoke and draft for air leakage only and do not require fire test nor self latching locks. Steelcraft does not offer/support this label/condition.