Air Entrainment: Smooth Bore vs. Fog | Connecticut | Fully Involved Ep. 11
Task Force Tips - Firefighter Equipment
4,543 views
Working in the exhaust with no remote vent? This episode shows how much air your nozzle really moves—and how to keep it from working against you. We demo smooth bore vs. fog in vent-limited and partially ventilated conditions, then tie it to hallway control and water mapping you can use tonight.
🧠 Use this video to train on:
– Reading air movement with streamers and making smart pattern choices in real hallways.
– Operating in vent-limited fires (most common) without intensifying conditions around you.
– Straight stream vs. fog: what actually happens to the exhaust when you’re in the hallway.
– Hydraulic ventilation options, including when to reach for Vortex (adjustable smooth bore).
– Methodical nozzle movement to reduce fatigue and improve water placement.
Fireground problems this video tackles:
🚫 Pushing hot gases back onto the crew while working in the exhaust.
🚫 Creating turbulence with fog patterns in tight interiors.
🚫 Counting on window failure that rarely happens with modern construction.
🚫 Wasting energy by “whipping” the stream instead of moving with purpose.
You’ll learn how to:
✅ Cool the common hallway from a position of advantage to make a tenable push.
✅ Choose smooth bore/straight stream in vent-limited spaces to limit air entrainment.
✅ Coordinate remote vent points so the flow path works for you, not against you.
✅ Use Vortex for big-air hydraulic ventilation at smooth-bore flows and pressures.
✅ Keep movements slow and deliberate for faster, cleaner water distribution.
⏱️ Chapters
00:00 – Episode 11 intro (Connecticut Fire Academy)
01:11 – Connecticut Subseries recap: E8–E11 arc
01:21 – Scenario setup & airflow demo plan
01:37 – Reading streamers; door open vs. closed (partial vs. vent-limited)
01:54 – How air entrainment affects nozzle tactics
03:16 – Vent-limited: Setup
03:24 – Vent-limited: Smooth Bore (7/8”)
04:01 – Vent-limited: Fog Nozzle in Straight Stream
04:33 – Vent-limited: Fog Nozzle in Fog Pattern
04:54 – Vent-limited: Takeaways
06:03 – Partially Ventilated: Setup
06:10 – Partially Ventilated: Smooth Bore
07:13 – Partially Ventilated: Fog Nozzle in Fog Pattern
08:00 – Partially Ventilated: Vortex Adjustable Smooth Bore
08:41 – Tailboard Talk: Pete’s Choices & Why
09:26 – How Episodes 8–11 connect
10:30 – Schedule a Demo
Fully Involved Series:
New York (E1–E3)
Atlanta (E4–E7)
Connecticut (Episodes 8–11): This subseries ties together low-staffed interior push, exterior water application, second-floor water mapping, and now air entrainment/ventilation—so your engine can stretch, flow, and win the hallway with less punishment.
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2 Comments
Chief Hughes
Battalion 1 (retired)
Chicago FD
Air Entrainment: Smooth Bore vs. Fog | Connecticut | Fully Involved Ep. 11
Task Force Tips - Firefighter Equipment
4,543 views
Working in the exhaust with no remote vent? This episode shows how much air your nozzle really moves—and how to keep it from working against you. We demo smooth bore vs. fog in vent-limited and partially ventilated conditions, then tie it to hallway control and water mapping you can use tonight.
🧠 Use this video to train on:
– Reading air movement with streamers and making smart pattern choices in real hallways.
– Operating in vent-limited fires (most common) without intensifying conditions around you.
– Straight stream vs. fog: what actually happens to the exhaust when you’re in the hallway.
– Hydraulic ventilation options, including when to reach for Vortex (adjustable smooth bore).
– Methodical nozzle movement to reduce fatigue and improve water placement.
Fireground problems this video tackles:
🚫 Pushing hot gases back onto the crew while working in the exhaust.
🚫 Creating turbulence with fog patterns in tight interiors.
🚫 Counting on window failure that rarely happens with modern construction.
🚫 Wasting energy by “whipping” the stream instead of moving with purpose.
You’ll learn how to:
✅ Cool the common hallway from a position of advantage to make a tenable push.
✅ Choose smooth bore/straight stream in vent-limited spaces to limit air entrainment.
✅ Coordinate remote vent points so the flow path works for you, not against you.
✅ Use Vortex for big-air hydraulic ventilation at smooth-bore flows and pressures.
✅ Keep movements slow and deliberate for faster, cleaner water distribution.
⏱️ Chapters
00:00 – Episode 11 intro (Connecticut Fire Academy)
01:11 – Connecticut Subseries recap: E8–E11 arc
01:21 – Scenario setup & airflow demo plan
01:37 – Reading streamers; door open vs. closed (partial vs. vent-limited)
01:54 – How air entrainment affects nozzle tactics
03:16 – Vent-limited: Setup
03:24 – Vent-limited: Smooth Bore (7/8”)
04:01 – Vent-limited: Fog Nozzle in Straight Stream
04:33 – Vent-limited: Fog Nozzle in Fog Pattern
04:54 – Vent-limited: Takeaways
06:03 – Partially Ventilated: Setup
06:10 – Partially Ventilated: Smooth Bore
07:13 – Partially Ventilated: Fog Nozzle in Fog Pattern
08:00 – Partially Ventilated: Vortex Adjustable Smooth Bore
08:41 – Tailboard Talk: Pete’s Choices & Why
09:26 – How Episodes 8–11 connect
10:30 – Schedule a Demo
Fully Involved Series:
New York (E1–E3)
Atlanta (E4–E7)
Connecticut (Episodes 8–11): This subseries ties together low-staffed interior push, exterior water application, second-floor water mapping, and now air entrainment/ventilation—so your engine can stretch, flow, and win the hallway with less punishment.
6BUUD1EIRBA9BBVW
GBVEZD4B0MN2F6L0
YWHW7W79SJM6H1RY
9UMPTU0K2PICQRJS
BGTROGBTYEMZINZC
I remember this demonstration in my academy but it was tough for it to stick in my head with all the other probies standing over each other and horsing around (this demonstration was towards the end of the academy)
Anyways thanks for breaking it done so well. Nicely done with the editing.
Subbed