Empire Comfort Systems 60" Boulevard Direct Vent Linear Contemporary Gas Fireplace - DVLL60BP90N Modern Flames Lexora Marsyas 48" Ash Grey

Empire Comfort Systems 60" Boulevard Direct Vent Linear Contemporary Gas Fireplace - DVLL60BP90N Modern Flames Lexora Marsyas 48" Ash GreyEmpire Comfort Systems 60" Boulevard Direct Vent Linear Contemporary Gas Fireplace DVLL60BP90N A Direct Vent system uses two vent pipes. One draws air in from outdoors to support combustion. The other exhausts the by products of combustion to the outside. The two vent pipes may be concentric (exhaust pipe within a larger diameter intake pipe) or co linear (separate pipes of about the same size). Combustion takes place inside a sealed chamber with a

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