Licensing Exams by Trade Name

Connecticut
(S-4) Limited Heating, Cooling & Piping Journeyperson

Apply for the License
Connecticut DCP
Heating, Cooling & Sheet Metal Licensing Unit
450 Columbus Blvd, Suite 801
Hartford, CT  06103
(860) 713-6135
Licensing Agency Site
Exam Provider
PSI Services LLC
3210 E. Tropicana
Las Vegas, NV  89121
Phone:  (855) 746-8171
Connecticut Occupational Trades Site
Exam Type
OPEN  BOOK
Exam Content
Subject Areas# of
Questions
Chimineys, Flues & Vents2
Insulation1
General Knowledge2
Controls3
Hydronics7
Fuel Gas Systems8
Oil Burners6
Piping5
Boilers3
Combustion Air2
Storage Tanks2
Ducts3
Heating & Chilled Water Equipment3
Safety – OSHA3
Total number of test questions:
50
Time allowed (hours):
2.0

In addition to the trade-specific examination, you are required to pass the Connecticut Business & Law Exam offered by PSI.

Link to Business and Law Study Materials
Books Allowed in the Exam
1.
International Mechanical Code, 2015, 2018 or 2021, ICC
Buy at Amazon
2.
NFPA 54: National Fuel Gas Code [or] National Fuel Gas Code Handbook, 2012, NFPA
Buy at Amazon
3.
NFPA 31: Standard for the Installation of Oil-Burning Equipment, 2006 or 2011 Edition, NFPA
Buy at Amazon
4.
Modern Refrigeration and Air Conditioning, 19th, 20th or 21st Edition, Althous, Turnquist, Bowditch, Bracciano
Buy at Amazon
5.
CFR Title 29, Part 1926 Selections (OSHA), 2013, PSI
Buy from PSI
6.
NFPA 58: Liquefied Petroleum Gas Code, 2014, NFPA
Buy at Amazon
7.
NFPA 56: Standard for Fire and Explosion Prevention During Cleaning and Purging of Flammable Gas Piping Systems, 2017, NFPA
Buy at Amazon
Books NOT Allowed in the Exam
1.
Modern Hydronic Heating for Residential and Light Commercial Buildings, 2nd Edition, 2004, John Siegenthaler
Buy at Amazon
2.
Residential Oil Burners, 3rd Edition, 2007, Herb Weinberge
Buy at Amazon
3.
Steam Plant Operation, 10th Edition, 2016, Woodruff & Lammers
Buy at Amazon
Available Study Materials
This study guide only covers the OSHA portion of the PSI exam.
PSI OSHA Selections, 2013
Study Guide
$49.95
We advise that you NOT purchase the PSI published book shown in the exam bulletin.  We recommend a better, up-to-date allternative on our Study Guides purchase page linked below.

The button below will take you to the details about our 800 question Study Guides and provide you with a FREE "Reference Navigator" document that allows you to more accutately decide which sections of the federal code applies to your exam.  PSI does not provide this information.
Go to OSHA Guide buy page
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May-2025