MODEL 2400 EO - OUTDOOR MODELFor exterior use onlyElectronic Ignition and built in Freeze protectionSuitable for heating potable water onlyNot approved for space heating purposes2400 EO NG - Natural Gas2400 EO LP - Liquefied Petroleum (LP) Gas6 720 608 257 US (06.11) JSWarning: If the information in this manual is notfollowed exactly, a fire or explosion may resultcausing property damage, personal injury or death.Do not store or use gasoline or other flammablevapor and liquids in the vicinity of this or any otherappliance.Improper installation, adjustment, alteration,service or maintenance can cause injury orproperty damage. Refer to this manual. Forassistance or additional information consult aqualified installer, service agency or the gassupplier.In the Commonwealth of Massachusetts thisproduct must be installed by a licensed plumber orgas fitter.Upon completion of the installation, theseinstructions should be handed to the user of theappliance for future reference.What to do if you smell gas• Close gas valve.• Do not try to light any appliance.• Do not touch any electrical switch; do not use anyphone in your building.• If you cannot reach your gas supplier, call the firedepartment.• Immediately call your gas supplier from a neighbor’sphone. Follow the gas supplier’s instructions• Installation and service must be performed by aqualified installer, service agency or the gas supplier.