Gas/oil fired thermal oil heater structure 1. During the time of high temperature operation, if there is a sudden power failure or other fault , that cause the emergency shutdown, please cut off the fuel supply in time and at the same time, remove the burner along with the cot mandrel. 2. The chamber and smoke funnel should be with natural ventilation for timely heat emission to avoid the static thermal oil in furnace tube absorption of furnace heat which will increase the thermal oil heater temperature rapidly and may exceed the thermal oil allowed temperature value. 3. During the operation, it must close the auxiliary exhaust valve. Because it is forbidden for the thermal oil under high temperature conditions to contact with air. 4. If the ignition fails, please immediately close the fuel shut-off valve until find out the reasons and troubleshooting. It is strictly prohibited the many times ignition which will cause explosion. 5. Different types of the oils cannot mix as fuel for burning.