Vented/Vent-Free/Super-size Gas Logs
All White Mountain Hearth Log Sets are certified for use with Empire Comfort System Vented/Vent-Free Slope Glaze Burners and Vented Slope Glaze Burners.
Vented/Vent-Free Burners include an Oxygen Depletion System (ODS) to quickly shut off the gas if room oxygen levels drop to unsafe levels. Vented/Vent-Free burners convert to Vented by opening the fireplace damper.
Vented burners operate at higher Btu. They have no ODS and are certified for use only in a vented firebox or conventional fireplace.
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