Chimney Safety Institute of America (CSIA)
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Make a MINT from Dryer Lint. 

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Whether you're seeking to start a new business or provide a valuable add-on service to existing customers, earning the CSIA Certified Dryer Exhaust Technician (C-DET) credential, the ONLY nationally recognized credential for dryer vent cleaning, can be a huge benefit to your bottom line.

The CSIA Certified Dryer Exhaust Credential is awarded following the study and completion of an exam based on the C-DET manual
.


​Since the credential was created, homeowners around the country have connected with qualified technicians near them through the "find a CSIA Certified Technician" search tool on the CSIA website. 


Quick facts about the C-DET credential: 
  • Once certified, you will never have to re-take the exam
  • Credential is good for a three year period
  • To re-credential every three years you only need to take the online review
  • No annual maintenance fee
  • Credential holders earn valuable referrals from both www.csia.org and
    ​
    www.dryersafety.org.
  • C-DET logos are aggressively protected from trademark violations through all legal avenues
Get up to date emails about C-DET certification events
Sign-up

3 Ways to Earn Your Credential
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2-Day Certified Dryer Exhaust Technician Workshop

​Hands-on training program held at the CSIA Technology Center (Plainfield, IN). The only facility of its kind, it was built specifically to train chimney and venting technicians. Course concludes with exam. Topics covered: 
​
  • Basics of how dryers work, how to disassemble as needed for cleaning
  • Proper venting and clearances
  • Rerouting damaged or unusable vents
  • Dryer vent cleaning and maintenance tools
  • Dryer vent testing and cleaning
  • Technician safety
  • Marketing your business​
Register for the 2-day workshop

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On Your Own

After studying the C-DET manual on your own:
  1. Complete the online review* (included with a CSIA-SureFire eLearning subscription)
  2. Pass a proctored exam

*The C-DET online review is not required before taking the exam, but it is strongly recommended.
Take the Online Review
Take a Proctored Exam

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1-Day CSIA Certified Dryer Exhaust Technician® Review & Exam

​The in-person review sessions offer an extensive review of the C-DET Manual and the opportunity to ask questions of CSIA’s experienced and knowledgeable instructors.  The review is designed to prepare you for the CSIA Certified Dryer Exhaust Technician® exam which follows the conclusion of the review. Students should have read and studied the C-DET Manual prior to attending the review session. 

Register for a 1-Day review & exam

CSIA Certified Dryer Exhaust Technician® Manual

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Whether online or in-person, any prospective candidate will need a copy of the CSIA Certified Dryer Exhaust Technician® Manual.

The manual can be purchased here – digital or print. You may also order the manual when registering for a related event. 

Order the C-DET Manual

About the Exam

The C-DET exam tests on the CSIA Certified Dryer Exhaust Technician® Manual and is 50 questions, requiring an 80% passing grade.

The exam must be taken in the presence of an exam proctor (online via ProctorFree or in-person).  Click here for information on the proctored exam process. 


Then, order  exams through CSIA. Electronic exams must be requested at least 3 business days before your exam date.
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Register for your exam
When registering online, please register for the event/month that correlates with the month you have scheduled your exam (example: if exam is in August, register for the Aug 1-31 event.)
Copyright CSIA | All Rights Reserved
2155 Commercial Drive  |  Plainfield, IN 46168
 (317) 837-5362 | office@csia.org
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  • Homeowner Resources
    • Chimney Safety Week
    • Community Resources
    • How to Hire a Chimney Sweep >
      • Multiple Estimates - Now What?
      • About Chimney Inspections
    • Why CSIA Credentials are the Industry Standard >
      • How do Chimneys Work? Design & Function of Chimneys.
    • About Your Chimney & Venting System >
      • Anatomy of Your Fireplace
      • Chimney Liners
      • Chimney Safety Overview
      • Gas Appliances
      • Oil-fired Appliances
      • Water & Your Masonry Chimney
    • The Facts About Chimney Fires
    • Properly Storing & Burning Wood >
      • How to Select Firewood
      • How to Build a Top-Down Burn
      • Installing Woodstoves and Inserts
      • Handling Wood Ash
    • Clothes Dryer Safety
    • Chimney Swifts
    • FAQ
  • Get Certified
    • CSIA National Training Academy
    • CSIA Certified Chimney Sweep
    • CSIA Certified Dryer Exhaust Technician
    • CSIA Certified Chimney Specialist
    • CSIA Master Chimney Sweep
    • Renew Your Credential
    • CSIA Exam Administration
    • Accepted Exam Proctors
    • Proctor Free
  • Education
    • Pandemic Special
    • CSIA Event Calendar
    • Class Schedule
    • In-Person Training >
      • CSIA 4-Day Workshops
      • Chimney Documentation to Reduce Liability & Increase Profits
      • Installing and Troubleshooting Gas Hearth Appliances
      • Chimney Science
      • Masonry Repair for Chimney Professionals
      • Rope Access and Safety
    • CSIA eLearning >
      • Subscription
      • À La Carte
      • Online Chimney Physics
      • Lining Masonry Chimneys with Stainless Steel
      • Certified Chimney Sweep® CVE Online Review - NEW
      • Certified Dryer Exhaust Technician® Online Review
    • CSIA ROADSHOW
    • Apply for CEUs
    • Military Benefits
    • Instructors
  • Partner with Us
    • CSIA Accepted Products >
      • ChimFex Fire Suppressant
      • CSL Creosote Sweeping Log
      • Duraflame Firelogs
      • Duct Cleaners Supply
      • National Chimney
      • SaverSystems
    • CSIA Access
    • Donor Recognition
    • Sweep Away Cancer
  • Sweep Shop
  • About
    • Mission & Leadership
    • Blog
    • MEDIA INQUIRIES >
      • Annual Chimney Fire and Carbon Monoxide Statistics
      • News
      • CSIA Video Library
      • White Papers
    • Contact
    • Sweeps Week
    • Preferred Hotels
    • Affiliates & Resources
    • Refund Policy
    • Trademarks & Ethics Processes
  • CCS & CDET Login