If you have a pilot light, then your oven knob will have a LIGHT position. If so, push the knob in while in that position, hold a lighter or match to the burner pilot light. Give it time for the propane to get to the pilot. Once lit, hold the oven knob in for 30 seconds or so to allow the thermal couple to sense the heat of the pilot. Release the oven knob (pilot light should still be lit) and turn the oven knob to desired temperature. Note: I always turn the oven completely off when finished using to conserve LP and safety.