More 44+ How To Turn On Outdoor Gas Fireplace
More 44+ How To Turn On Outdoor Gas Fireplace. A gas fireplace feeds natural gas from a main line into the bottom line of a paneled and insulated fireplace unit. Read the instructions if you have them. Gas fireplace operation depends on the make and model of the appliance. When learning how to turn on a gas fireplace without a key, see if the unit has a control panel with an igniter switch.