Installation the Outdoor Vent Cover 153References Descriptions MinimumdistancesADirectly below or adjacent to anopening; operable windows, doorsand any fresh air openings48" (USA)BCD From any adjacent wall 12"E Below a gutter, sanitary pipework,eaves or overhang 36"F Above ground 12"G From a gas meter or gas regulator 36"9.3 Choosing an Installation LocationWhen choosing an installation location, you must ensure thatthe location provides adequate clearance for the water heater,adequate venting and drainage options, and sufficient access togas, water, and electrical supplies. Before proceeding, read thewater heater installation manual.● Choose an outside wall for the installation. Installation on a wallprotected by an overhang above is recommended.● Size the water and gas connections according to the instructionsin the water heater installation manual. Use unions whenconnecting both water lines and the gas supply line to theheater.Install the water heater in an area that allows for service andmaintenance access to utility connections, piping, filters, and traps.Based on the installation location, allow for the following minimumclearances from the water heater:TopIntake AirBackSideSideBottomExhaust GasFrontReferences Minimum distancesBottom 12"Back 0.5"Sides 3"Front 24"Top 36"
