🔍 Key Concepts

• Safety of oil burners at low load and risk of overheating or coking • Difference between securing fuel and steam vs. circulating fuel for cooling • Proper storage and maintenance of burners not in immediate service

💭 Think About

• Ask what can happen to an idle burner that stays installed in the furnace but is not cooled or properly secured. • Consider whether a burner that is not in use should be kept ready for quick use, or fully removed and stored, based on standard boiler room practice. • Think about which procedure best reduces fire risk, fuel leakage, and burner tip damage during low load operation.

✅ Before You Answer

• Verify which options ensure no uncontrolled fuel can leak or drip into the furnace from unused burners. • Check which procedure prevents overheating and carbon deposits on unused burner tips. • Confirm that the chosen option matches typical safe boiler operating practice during low load, not just convenience for quick restart.