To use oil burner, fill your burner to just under the rim with water, drop 4-5 drops of essential oil or fragrance oil into the water and light your candle. As an alternative drop some simmering granules into the rim and light your candle - no water is required for simmering granules. approx size 14 x 10 cm. Place burner on cool, heat resistant surface away from draughts and other sources of heat such as TV sets. Make sure a burner is in an open and unconfined space with a minimum clearance of 50cm above the burner. Keep away from flammable materials such as curtains. Keep out of reach of children and pets.