Amen, Brother! Couldn't agree more..... But I also agree with VinnieB....PPV is not suited for all situations. City department with 3-4-5 story walkups, multiple occupancy dwellings, different construction styles, etc. will use very different ventilation tactics than their suburban or rural counterparts.Quote:
Originally Posted by fireman4949
Balloon construction? Don't have it around here....I can probably count on two hands the number of two story houses we have in our area, and very few of them are old homes. Our common structure fire is the single family dwelling, one story, 1,000 to 2,000 sq. foot living area. For us, PPV works very well.
It's a manageable sized building...set the PPV in the door and as the smoke clears out, it will take the hose team only seconds to locate the seat of the fire and make a knockdown. That's the key...Yes, PPV will cause the fire to flare up a bit, but you're on it in seconds and it doesn't have a chance to take off. I can imagine, though, that if you pressurize a building and you have to walk up 4 floors, force entry into and search several apartments, then yeah, the fire would have a chance to take off on you.
We have used it with great success for about 15 years now, and are comfortable with how and when to use it. I have seen other departments attempt to use it improperly and either have ineffective or negative results, because they don't understand its use.
I recall going to a fire with a neighboring department years ago, when everyone was just getting into PPV. They bought a fan but didn't bother to find out how to use it properly. They put it backwards in the doorway to draw the smoke out of the building, like they were used to doing with their old electric ventilation fans :rolleyes:
Obviously this is a rather extreme example of using a PPV fan wrong, but improper placement, starting ventilation before the hose team is ready to enter, or trying to pressurize a building that already has multiple or large vents open (making it impossible to create pressure), are all examples of improper tactics in using PPV.
When used correctly, in the appropriate situations, PPV is indeed an excellent tool and makes conditions much more tenable for your interior crews.