Foundation-first training
Build the base knowledge OBT3 learners need before moving into more complex service logic.
Oil Burner Technician OBT3
OBT3 prep for oil burner fundamentals, safety, and supervised service work.
Build confidence with oil burner basics, safe work sequence, combustion fundamentals, controls, components, and practical maintenance logic.
New plans from C$8.99/month. Explore pricing
CODESAFE ACADEMYPRODUCT DEMOPracticeMock examsAnswer review
Electrical fundamentalsSample question
A 24 V circuit has 6 Ω resistance. What current flows?
A2 A
B4 A
C6 A
Understand the answer.Ohm’s law: I = V ÷ R. Divide 24 by 6 to get 4 amperes.
Illustrative demo · no saved progressTrade-specific practice
More than a right or wrong answer.Build the understanding behind the score.
Practice with a purpose
A stronger foundation for exam day.
Safety and sequence
Practice safe order of operations, supervision rules, controls, and burner fundamentals.
Serious study lane
Make entry oil burner prep feel complete, modern, and worth returning to.
Connect the dots
Build your understanding, topic by topic.
Use focused practice to revisit the systems, skills and concepts in your trade. Bring what you learn into your next mock exam.
Try a free practice setSafety
Supervision Rules
Combustion Basics
Burner Components
Controls
Maintenance
Venting
Troubleshooting
Your trade exam deserves a game plan.
Start with 30 free questions. Find the gaps. Build your exam confidence.