1. After the heater is installed for the first time, it should be opened several times to completely eliminate the air in the oil supply system and fill the oil pipeline with fuel.
2. The heater should be tested before use. Carefully check the security status of all connections during the trial run. If there is smoke emission, abnormal combustion noise or fuel odor, turn off the heater and unplug the fuse. It can be used only after inspection by professional personnel.