Empire 41" Boulevard Direct Vent Linear Contemporary Fireplace unfinished ⁽⁷⁾Optimum overall efficiency at a

⁽⁷⁾Optimum overall efficiency at a specific burn rate (LHV)

DVD's and more

passes all high-wind test protocols

For use with your Empire High Efficiency PVS18 and PVS35 UltraSaver90 Plus Heating Systems

Color: Assorted

Empire 41" Boulevard Direct Vent Linear Contemporary Fireplace unfinished ⁽⁷⁾Optimum overall efficiency at aOVERVIEW 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 glass front in the case of a fireplace. Room air circulates around the combustion