(S-3) Limited Heating, Cooling & Piping Contractor
Apply for the License
Heating, Cooling & Sheet Metal Licensing Unit
450 Columbus Blvd, Suite 801
Hartford, CT 06103
PSI Licensure: Certification
3210 E. Tropicana
Las Vegas, NV 89121
Phone: (855) 746-8171
|Subject Areas||# of|
|Chimineys, Flues and Vents||2|
|Fuel Gas Systems||11|
|Heating and Chilled Water Equipment||3|
Total number of test questions:
Time allowed (hours):
In addition to the trade-specific examination, you are required to pass the Connecticut Business & Law Exam offered by PSI.
Books Allowed in the Exam
International Mechanical Code [or] International Mechanical Code Commentary, 2009, 2012 or 2015 Editions, ICC
NFPA 54: National Fuel Gas Code [or] National Fuel Gas Code Handbook, 2012, NFPA
NFPA 31: Standard for the Installation of Oil-Burning Equipment, 2006 or 2011 Edition, NFPA
Modern Refrigeration and Air Conditioning, 19th or 20th Edition, Althous, Turnquist, Bowditch, Bracciano
Code of Federal Regulations, 29 CFR Part 1926 (OSHA), GPO [or] (OSHA) Selections by PSI
NFPA 58: Liquefied Petroleum Gas Code, 2014, NFPA
NFPA 56: Standard for Fire and Explosion Prevention During Cleaning and Purging of Flammable Gas Piping Systems, 2017, NFPA
Books NOT Allowed in the Exam
Modern Hydronic Heating for Residential and Light Commercial Buildings, 2nd Edition, 2004, John Siegenthaler
Residential Oil Burners, 3rd Edition, 2007, Herb Weinberge
Steam Plant Operation, 9th Edition, 2012, Woodruff and Lammers
Available Study Materials
PSI OSHA Selections
Sample questions are based on the PSI publication titled “29 CFR PART 1926 Selections, as of June 2013” (hightlighted in green above).
This file contains approx. 800 sample questions.
REMINDER: PSI uses this book for many exams they offer. Not all sections of this code will apply to your exam.