| Patent Number |
Title Of Patent |
Date Issued |
| D395079 |
Unvented gas log set |
June 9, 1998 |
|
| 6425390 |
Unvented heating appliance having system for reducing undesirable combustion products |
July 30, 2002 |
| A heating appliance including a firebox having an inlet and an outlet, the firebox inlet and outlet in communication with a space containing ambient air and within which the appliance is located. A gas burner is disposed within the firebox and provides a flame, the flame supported by amb |
| 6216687 |
Unvented heating appliance having system for reducing undesirable combustion products |
April 17, 2001 |
| A gas-fueled heating appliance having a system for reducing the amount of undesirable combustion products released to the site in which the appliance is installed. The appliance includes a firebox partially surrounded by a heat exchanger. Ambient air is drawn into the heat exchanger |
| 5947113 |
Direct vent gas appliance with vertical and horizontal venting |
September 7, 1999 |
| The invention relates to a direct vent gas fireplace adapted for attachment to a concentric flue pipe assembly having an exhaust pipe and fresh air pipe. A top wall, rear wall, bottom wall and side walls define a combustion chamber. A gas burner is disposed in the combustion chamber. A |
| 5701882 |
Fireplace with ceramic fiber duct |
December 30, 1997 |
| A fireplace having a low density ceramic fiber duct with a first duct portion which promotes secondary combustion of unburned products of combustion and a second duct portion which removes products of combustion from the front of the combustion chamber. The ceramic fiber duct is posi |
| 5695116 |
Thermally activated vent damper |
December 9, 1997 |
| A thermally activated vent damper assembly for occluding passage of gases in a passageway such as a flue. The assembly includes first and second damper members which are pivotable about a common axis. Coaxial first and second support members which are spaced apart along the common axis |
| 5673683 |
Induced draft fireplace |
October 7, 1997 |
| The invention is directed to an induced draft fireplace including a plurality of outer walls defining an outer housing. The outer walls include at least one outer side wall and an outer top wall. A plurality of inner walls define a combustion chamber. The inner walls include at least |
| 5626127 |
Clean face air circulating fireplace |
May 6, 1997 |
| A fireplace including a heat exchanger beneath the combustion chamber floor. The front panel or surround of the fireplace housing includes a central opening which accesses the combustion chamber. Room air inlets and outlets, which are ducted to the heat exchanger, are horizontally arrang |
| 5617842 |
Fireplace with outer housing cooling system |
April 8, 1997 |
| A fireplace with a cooling air passageway within the fireplace housing that maintains the forward portion of the housing top wall cool during operation. The fireplace includes a combustion chamber, a flue, and an outer housing that encloses the combustion chamber. Plenums formed between |
| 5603312 |
Direct vent wood burning fireplace |
February 18, 1997 |
| The invention is directed to a balanced flue or direct vented, solid fuel burning fireplace which may be installed in a building and is operable at energy input levels greater than 75,000 BTU/hour. An enclosure including a top wall, bottom wall and four side walls defines a combustion ch |
| 5584680 |
Unvented gas log set |
December 17, 1996 |
| An unvented gas log set for an unvented fireplace. The unvented gas log set includes a log supporting frame, simulated logs operatively connected to the frame, a flame-producing burner in spaced relationship with the logs, and a pilot for the burner. The unvented gas log set utilizes a s |
