certification is important.
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Anyone can call themselves a "technician" and advertise their services online or in the local newspaper, but that means nothing.
Hiring a CSIA® Certified Exhaust Technician® means you are trusting your home and family to someone who has spent countless hours studying for (and passing) an extensive exam covering everything from the proper inspection and maintenance of dryer vents to the applicable codes and standards relating to these systems. Many of the current CSIA® CDET® professionals have participated and passed a rigorous two-day workshop where they have learned directly from some of the most respected experts in the chimney and venting industry. The CSIA® CDET® credential is the only nationally-recognized credential of its kind. 
John Bently, CSIA® CDET® instructor for CSIA® gives students a hands-on demonstration during a 2-day workshop.
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During a typical inspection CSIA® Certified Dryer Exhaust Technician® examines, cleans and verifies that the venting system is sized and installed correctly. For example, plastic transition ducts (joining the dryer to the wall) should be replaced with metal ducts because it is non-flammable, unlike plastic. Annual dryer exhaust vent inspections (also known as dryer exhaust duct inspections) are more necessary due to the complex construction of today’s homes. Dryers in newer homes are typically located away from outside walls in bathrooms, kitchens and in hall closets which is convenient, but potentially dangerous from a safety standpoint. These locations mean longer venting distances often installed with more bends. As a result, dryer ducts are harder to access and this additional length creates more surface area where lint can collect and animals and birds can hide.
So, in addition to keeping you safe, an annual clothes dryer exhaust inspection by a CSIA® Certified Dryer Exhaust Technician® can also increase the efficiency of your clothes dryer and decrease the wear on your appliance and your clothing ... ultimately saving you money. |
Appliance Efficiency
A clean exhaust duct prevents heat, moisture and, in the case of gas clothes dryers, carbon monoxide from being trapped in your home. When this type of spillage occurs, energy, natural resources and time are all wasted because your appliance works too hard and runs longer than necessary. Moisture can also cause damage to drywall, wallpaper, ceilings and other building materials.
A clean exhaust duct prevents heat, moisture and, in the case of gas clothes dryers, carbon monoxide from being trapped in your home. When this type of spillage occurs, energy, natural resources and time are all wasted because your appliance works too hard and runs longer than necessary. Moisture can also cause damage to drywall, wallpaper, ceilings and other building materials.
Wear on Your Clothes Dryer
If your dryer takes twice as long to dry clothes as it should, the number of loads that it will dry is cut in half. When the dryer runs at higher than designed temperatures, the life of your clothes dryer decreases. This can lead to the heating element burning out or a fire could ignite as a result of overworked safety controls.
If your dryer takes twice as long to dry clothes as it should, the number of loads that it will dry is cut in half. When the dryer runs at higher than designed temperatures, the life of your clothes dryer decreases. This can lead to the heating element burning out or a fire could ignite as a result of overworked safety controls.
Seven Facts About Clothes Dryer Exhaust Safety
1. According to manufacturer’s specifications and local codes, dryer ducts must be a minimum 4” in diameter and at least as large as the dryer outlet.
2. Unless otherwise specified by your dryer’s manufacturer or local code, the developed length of your dryer’s exhaust duct should not exceed 25 feet. (When determining developed length, each 90º turn adds 5 feet to the actual length.)
3. Dryer vents shall be independent of all other systems and terminate outdoors, not into a chimney, crawl space or attic.
4. Your outside dryer exhaust vent’s termination hood should be equipped with a back draft damper to ensure that the exhaust doesn’t come back in your home.
5. Metal transition ducts should be used between the dryer and the exhaust duct.
6. Flexible transition ducts should never be used in an attic, a crawl space, or inside a wall.
7. The CSIA® Certified Dryer Exhaust Technician credential is the only nationally-recognized credential of its kind.
1. According to manufacturer’s specifications and local codes, dryer ducts must be a minimum 4” in diameter and at least as large as the dryer outlet.
2. Unless otherwise specified by your dryer’s manufacturer or local code, the developed length of your dryer’s exhaust duct should not exceed 25 feet. (When determining developed length, each 90º turn adds 5 feet to the actual length.)
3. Dryer vents shall be independent of all other systems and terminate outdoors, not into a chimney, crawl space or attic.
4. Your outside dryer exhaust vent’s termination hood should be equipped with a back draft damper to ensure that the exhaust doesn’t come back in your home.
5. Metal transition ducts should be used between the dryer and the exhaust duct.
6. Flexible transition ducts should never be used in an attic, a crawl space, or inside a wall.
7. The CSIA® Certified Dryer Exhaust Technician credential is the only nationally-recognized credential of its kind.
The Chimney Safety Institute of America (CSIA)® is a non-profit educational institute that has established the only nationally-recognized certification program for dryer venting professionals in the United States.
The program was developed in keeping with the CSIA’s commitment to the safety and efficiency of chimney and venting systems and to the elimination of residential chimney fires, carbon monoxide intrusion and other chimney and vent-related hazards.
CSIA® devotes its resources to educating the public, the insurance industry, chimney service professionals and other fire prevention specialists about the prevention and correction of chimney and venting system hazards.
The program was developed in keeping with the CSIA’s commitment to the safety and efficiency of chimney and venting systems and to the elimination of residential chimney fires, carbon monoxide intrusion and other chimney and vent-related hazards.
CSIA® devotes its resources to educating the public, the insurance industry, chimney service professionals and other fire prevention specialists about the prevention and correction of chimney and venting system hazards.
