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ATTENTION: Is Your Home Safe From A Dryer Vent Fire?
About Safe Dryer Vent Solutions
Safe Dryer Vent Solutions is a fully insured, Local Veteran-Owned Business that serves customers throughout Central Indiana. We provide a free inspection and quote to the following counties: Hendricks, Marion, Boone, Hamilton, Hancock, Shelby, Morgan, and Johnson counties.

This warning label is located on your dryer somewhere. Normally in the back or just inside the door
These warning signs can be found on the back of the dryer
Dryer Fire Fact Sheet and the Consumer Safety Warning
Written by Scott Stein on March 20, 2018
Statistics and Implications

Dryer exhaust fires now surpass creosote (chimney) fires in frequency on a national level. In 1998, the most recent statistics available, the Consumer Product Safety Commission reports that over 15,600 dryer fires occurred killing 20 people, injuring 370 more and causing over $75.4 million in property damage. According to the CPSC, in most of these cases the culprit was lint getting into the machine’s heating element, sparking and fueling a fire. In response to this growing trend, many dryer manufacturers now employ a device that shuts the appliance down when airflow is obstructed. However, these safeguards are subject to wear and have been known to fail. Nor surprisingly, some fire departments and insurance companies now require that dryer vents be inspected and cleaned regularly.

With gas dryers, there is also concern of carbon monoxide (CO) poisoning. Since lint and flue gases use the same avenue of exit from the house, a blocked vent can cause CO fumes to back up into the house, these fumes are colorless and odorless and they can be fatal. low-level CO poisoning mimics flu symptoms (without the fever): headache, weakness, nausea, disorientation and deep fatigue. At higher levels, occupants can fall asleep, lapse into a coma and die.

Anatomy of a Dryer Fire

Dryer fires usually start beneath the dryer when the motor overheats. Overheating is caused by a build-up of lint in the duct that increases the drying time and block the flow of air, just like cholesterol in your arteries can build up and block the flow of blood to your head. Naturally, any lint that has collected under the dryer will burn and the draft from the dryer will pull that fire up into the duct. Since the duct is coated or even blocked with lint, many times a house fire results. Other contributing conditions may include failure of the thermostat and limit switches in the dryer, lint inside the dryer, a missing or damaged lint screen, a crushed hose behind the dryer, or a bird’s nest or other debris blocking the vent.

Higher Risk Situations

Residential dryer vent lengths may not have an equivalent length greater than 25 feet.
Five additional feet for each 90-degree bend must be added to the actual physical
length to compute the vent’s equivalent length. This will determine the vent’s actual
resistance to the airflow.
  •  Homes with larger families or where dryers are used heavily are at greater risk.
  •  Flexible plastic duct is no longer code-approved for clothes dryers. It is normally
  • one of the first things burning lint will ignite, having been shown to flame in as little as
  • 12 seconds. Lower cost and high flexibility often make it attractive to unadvised
  • homeowners installing their own machines.
  •  Flexible duct made of thin foil is not recommended for clothes dryers. It’s
  • tendency to “kink” and stop airflow makes it dangerous to use.
Warning Signs
There are several warning signs that you should be aware of including the Dryer is still producing heat, but taking longer and longer to dry clothes, especially towels and jeans. (Normal is 45-60 minutes). Clothes are damp or hotter than usual at the end of the cycle or the outdoor flapper on vent hood doesn’t open when dryer is on.

Additional Benefits to Dryer Vent Cleaning
. Allows your dryer to operate more efficiently, using less energy and saving you money.
. Protects your dryer from excess wear and premature death.
. Helps clothes dry faster-a time savings for busy families.
. Reduces excess household dust and humidity.
. Helps preserve clothing, as the life of many fabrics is damaged by excessive high heat.

Inspection Frequency
Most vents need cleaning every two to three years. Some dryer vents need attention more often. lf it is the first rime that a dryer vent has been cleaned, having it re-checked again in a year can help to make a reasonable judgment. Determining factors include: 
  •  How heavily the dryer is used
  •  How long the vent is and the materials used. Shorter vents usually blow better.
  • The age and type of dryer used. Full size dryers blow better than smaller stack dryers or older dryers
  • The design of the vent. Those with a lot of turns and elbows blow worse and build up more lint.
Overheated Clothes Dryers Can Cause Fires
Consumer Product Safety Alert
The U.S, Consumer Product Safety Commission estimates that there are an estimated annual 15,500 fires, 10 deaths, and 310 injuries associated with clothes dryers. Some of these fires may occur when lint builds up in the filter or in the exhaust duct. Under certain conditions, when lint blocks the flow of air. Excessive heat build-up may cause a fire in some dryers, To prevent fires:
  •  Clean the lint filter regularly and make sure the dryer is operating properly. Clean the filter after each load of clothes. While the dryer is operating, check the outside exhaust to make sure exhaust air is escaping normally. lf it is not look inside both ends of the duct and remove any lint. lf there are signs that the dryer is hotter than normal, this may be a sign that the dryer’s temperature control thermostat needs servicing.
  • Check the exhaust duct more often if you have a plastic, flexible duct. This type of duct is more apt to trap lint than ducting without ridges.
  • Closely follow manufacturers’ instructions for new installations. Most manufacturers that get their clothes dryers approved by Underwriters Laboratories specify the use of metal exhaust duct. lf metal duct is not available at the retailer where the dryer was purchased, check other locations, such as hardware or builder supply stores. lf you are having the dryer installed, insist upon metal duct unless the installer has verified that the manufacturer permits the use of plastic duct.

About Author: Scott Stein

Scott Stein is the owner and founder of Safe Dryer Vent Solutions LLC, a local veteran-owned small business in Hendrick's County.  
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