Empire Loft 36" Millivolt Control With On/Off Switch, Natural Gas Direct Vent Linear Fireplace modern The “Patina Finish” features a

The “Patina Finish” features a natural iron oxide patina that will gradually darken over time

This particular FlexDuct is 4" (100 mm) in diameter

DuraChimney II is an exceptional factory-built alternative to pre-fabricated masonry chimneys

Fits models GSF-DGH and GSF-DGHSS

Model 4MO45S Application For use with category I natural gas-burning or propane-fired appliances such as gas boilers

Empire Loft 36" Millivolt Control With On/Off Switch, Natural Gas Direct Vent Linear Fireplace modern The “Patina Finish” features aA 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 chamber, often