Construction Trade Exam Research Area

(S-6) Limited Heating, Hot Water, and Steam

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Connecticut Department of Consumer Protection
Occupational & Professional Licensing Division

165 Capitol Ave.
Hartford, CT  06106
(860) 713-6100
Licensing Site

Exam Administrator

PSI Licensure : Certification
3210 E. Tropicana
Las Vegas, NV 89121
Phone: (800) 733-9267
Candidate Information Web Page

Exam Type


Exam Content

Subject Areas # of
Insulation 1
General Knowledge 4
Controls 5
Equipment 8
Piping 17
Maintenance and Testing 5

Total number of test questions: 40
Time allowed (hours): 1.5
The state of Connecticut also requires that you take and pass a written Business Management exam for this trade.

Go to Business and Law Offering

Books Allowed in the Exam

1. International Mechanical Code - OR - International Mechanical Code Commentary, 2009, 2012 or 2015 Editions, ICC Buy at Amazon
2. Modern Refrigeration and Air Conditioning, 19th or 20th Edition, Althous, Turnquist, Bowditch, Bracciano. 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. Carrier System Design Manual - Part III: Piping Design, 1960 Edition, Carrier Air Conditioning Company. Buy at Amazon
3. Pipefitter’s Handbook, 3rd Edition, 1967, Forrest R. Lindsey. Buy at Amazon
Study materials are currently NOT available for this exam

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