INST ION INSTRUCTIONS WALL MOUNT RANGE HOOD WARNING TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSONS, OBSERVE THE FOLLOWING: A. Installation Work and Electrical Wiring Must Be Done By. D. Sufficient air Is needed for proper combustion and Quailed Person(s) in Accordance With Ali Applicable exhausting of gases through the fue (chimney) of fuel Codes And Standards, including Fire-Rated Construction, burning equipment to prevent back drafting. Follow the B.