Frequently Asked Questions
This question is like asking “should I use a Fog or Strait Bore Nozzle?”. It depends on your departments jurisdiction and how you train. Both guards produce the same CFM just as both nozzles can flow the same gallonage.
The Standard Cone guard produces a wider(Fog) outflow making it more feasible to put the fan closer to the door or entry point. This is important in situations without much room in front of the door (Brownstones, multi-story Motels with outside room entrances, etc.) The Stream Shaper guard has a narrower(Strait Bore) outflow path making it possible to move the fan further away from the door or entry point. This is important when there are 4-5 stairs or other obstructions near the door. It can also reduce the fan noise inside the structure by allowing set-up further from the door.
You can also use a V-attack with either type of guard. Set your fans at a 45 degree angle to the door to allow strait-in access for hose lines. If you have 2 fans, point one low and the other high.
Hey, you signed up to be in the Fire Department. There are many situations that can’t be covered here. But following are some things to help you decide how to ventilate:
- PPV has been used more and more by departments since the mid-1990’s. It is an impressive technique that can remove heat and smoke quickly. Through extensive use around much of the world, it has proved itself an effective technique.
- PPA is a modification that is suggesting that PPV is used earlier in the attack phase.
- Smoke Ejection has been used after the fire is out since the 1950’s. There are still times where it is the best way to ventilate, especially in areas with limited ingress/egress like Old Folks Homes or Prisons.
- Anti-Ventilation is the newest term here, and refers to not allowing a ventilation limited fire to have any oxygen (not even an open door if possible). See some of the Kill the Flashover work at http://killtheflashover.com/
We offer the largest variety of ventilation equipment world wide to many industries.
Although the Fire Dept. Industry is a large part of our customer base, we also have an Industrial Line for various other industries such as manufacturing sandblasting, construction, utility companies, airports, ship building, and many others that require the need for air movement. We offer units in sizes from 8″ to 80″ depending on your needs. Super Vac manufacturers units powered by gasoline, diesel, electric (variable speed, single speed, and hazardous location), water and even air.
Our customers have used Super Vac fans for personnel and machine cooling, dust removal, confined space, aircraft brake cooling systems, and fume removal just to name a few. We have a wide variety of accessories such as spiral, translucent, or flame resistant duct, manhole adapters, heating units, and even units with misting capabilities.
CO and other by-products of combustion have been an issue with gas powered fans. That is why we offer an Exhaust Extension that will drop your CO level to well below 5 ppm and eliminate any combustion odors. Our exhaust extension has undergone testing by Honda Motors to verify it does not alter the emissions design of the engine or void the warranty. We are OEM approved and Honda Certified with a 3-year warranty on GX engines and a 3-month warranty on GC engines.
We have tested many catalytic converters on the market, and while they reduce the CO levels, they do not eliminate them. There are claims of reducing the CO into the 30-40 ppm range but we have not been able to achieve levels near that low in our tests. The existing catalytic converters are not approved by any engine manufacturers and void your engine warranty.
Exhaust extensions get very hot. If you are on scene for a long period of time, the exhaust extension can make a mess of any carpet or wood flooring. You can either out something under it (cribbing, nozzle adapters, a bunker coat), or use the Glove Heat Shield. It is basically bunker gear for the Exhaust Extension, protecting any flooring from heat.
Another issue with the Exhaust Extension is the need to be set taking into account the wind. If the wind is blowing from the west to the east, you need to set you exhaust extension on the east side of the fan. The tube on the exhaust extension has been made flexible enough to quickly and easily direct exhaust fumes into any direction.
Yes! There has been many studies to show that PPV significantly increases heat release. The video below shows a room being cleared 3 times faster with PPV than natural ventilation. Read more about it here.
Super Vac offers two different manufacturer choices of gasoline power plants (Honda and Briggs & Stratton) in our 16″, 18″ and 20″ models. Each engine type offers something special in their own way. We leave it up to you to decide which is best for your application.
The Honda GX Series Gasoline Powered 4-Cycle Engine offers a reliable, easy starting, fuel efficient Over Head Valve design for commercial applications. The GX Series offers an Automatic Mechanical Decompression System for ease of starting, Steel Fuel Tank, Separate On/Off Switch, Low Oil Level Sensor and a 3 year warranty.
The Honda GC Series Gasoline Powered 4-Cycle Engine offers a reliable, easy starting, Over Head Cam design. This makes these engines lighter and more compact than other engines in their class with significantly reduced noise, fuel and oil consumption and a 3 month warranty. Fans with this series engine is usually less expensive than other models.
The Briggs and Stratton options offer the “550 Series” in the 127cc model and the use of the Vanguard for the 205cc and 305cc models.
The Briggs “550 Series” offers an Over Head Valve design, Cast Iron Sleeve Cylinder, and Lo-Tone Muffler for quiet, long life operation and a 1 year warranty.
The Briggs “Vanguard Series” offers a all metal fuel tank, low oil sensor, and “Transport Guard” which shuts off fuel/ignition to protect the engine from oil/fuel dilution during transport, and has a 3 year warranty.