I Locating the Water Heater:fa... WARNING� Considering the LocationLocation selection may not necessarily affect the operation of the Navien waterheater but it will affect the customer's experience and level of satisfaction withthe product. Understanding that each building is different, the contractor willhave to select the best location based on a combination of the following factors:1) Locate Navien water heater close to a drain where condensed water and possiblewater leakage will not do damage to surrounding areas. A significant amount ofcondensed water will be produced each time the water heater is used. In addition,as with any water heating appliance, the potential for leakage at some time in thelife of the product does exist. If there is no drain, Navien will not be responsible forany water damage that may occur;2) Locate where the city water supply comes into the building;3) Locate where the gas supply comes into the building;4) Locate the main fixtures in the home (bathrooms, kitchen, laundry, etc.). Select alocation that minimizes the water piping distance between the major fixtures. If thedistances are long or an appliance needs "instant" hot water, Navien recommendsusing its "A" models and running a recirculation line back from the furthest fixture.Insulate as much of the hot water supply line and recirculation line as possible;5) Consider Venting Options: Select a location that minimizes the amount of ventingrequired. Consider venting restrictions from windows, doors, air intakes, gas meters,neighbor's house, etc. Check Local codes but Navien has included some generalinformation in this install guide.• Maintain proper clearances from any openings in the building (see chart in ventingsection).• Navien water heater requires a minimum clearance of 12 inches above the exteriorgrade.• Do not install the water heater where moisture from the exhaust may causediscoloration or damage to walls.• Install the exhaust vent so that there are no obstacles around the termination andso that exhaust cannot accumulate.• Do not enclose the termination.• Do not install the water heater near vents for heating of cooling. A minimum of 4feet(1.2m) should be maintained.6) It is not recommended to install the water heater in bathroom, bedroom, anyoccupied rooms normally kept closed, or in in-outdoor areas without proper venting.