Abstract: A fireplace having a bottom venting arrangement is disclosed. The fireplace includes a firebox having a burner and a combustion chamber. Fumes produced by burning of gas at the burner are pulled into an upper exhaust plenum in the upper portion of the firebox. The upper exhaust plenum is in fluid communication with the combustion chamber. The upper exhaust plenum is also in fluid communication with an upper end of a substantially vertical exhaust passage. The lower end of the exhaust passage is in fluid communication with a blower opening in a bottom panel of the firebox. An intake side of a blower is attached to the blower opening. The blower also includes a discharge side, which is coupled to an exhaust port on the fireplace. The blower operates when a fire is burning, and fumes containing combustion products are drawn into the upper exhaust plenum.

Abstract: A fireplace having a bottom venting arrangement is disclosed. The fireplace includes a firebox having a burner and a combustion chamber. Fumes produced by burning of gas at the burner are pulled into a plenum in the upper portion of the firebox. The plenum is in fluid communication with the combustion chamber. The plenum is also in fluid communication with an upper end of a vertical air passage. The lower end of the air passage is in fluid communication with a blower opening in a bottom panel of the firebox. An intake side of a blower is attached to the blower opening. The blower also includes a discharge side, which is coupled to an exhaust port on the fireplace. The blower operates when a fire is burning, and fumes containing combustion products are drawn into the upper plenum. From the plenum, the fumes travel into the air passage, and then travel in a downward direction to the blower opening and into the blower intake.