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-WHAT TO DO IF YOU SMELL GAS *Do not try to light any appliance. *Do not touch any electrical switch; do not use any phone in your building. *Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions. *If you cannot reach the gas supplier, call the fire department. -Installation and service must be performed by a qualified installer, service agency or the gas supplier. -Save this manual for future reference. This is an unvented and vented gas-fired heater