Empire 72" Boulevard Direct Vent Linear Contemporary Gas Fireplace d23.60 Enhanced Control: The 3-7 spring

Enhanced Control: The 3-7 spring configuration ensures precise modulation

Model HSSVFBF20NGBT Heating Area 700 sq

ft instantly

- Includes gaskets and hopper screen for easy maintenance and cleaning

Precise control of refrigerant flow rate

Empire 72" Boulevard Direct Vent Linear Contemporary Gas Fireplace d23.60 Enhanced Control: The 3-7 springOVERVIEW 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