Open the damper and the draft as far you can. The levers to control these are located where the top of the insert and the chimney meet.
Open the door of the insert. Lift the door off its hinges, if you need to, in order to reach the bottom of the insert.
Place small pieces of firewood onto the bottom of the insert.
Set the wood on fire. Use the gas lighter of the insert if yours has one, or use gasoline and a match to set the fire.
Let the small pieces of wood burn for a minute or so, until the flame is steady.
Add large firewood logs to the insert on top of the already burning pieces.
Close the door and let the insert heat up.
Lower the damper until it is open only halfway, and lower the draft by 3 notches. You can turn the blower on at this time to circulate the air.
Adjust the draft to control the heating. If it gets too hot, lower the draft; if it is cold, open the draft wider.