Direct vent gas appliance with vertical and horizontal venting

Details Direct vent gas appliance with vertical and horizontal venting Direct vent gas appliance with vertical and horizontal venting

F - Mech Eng,Light,Heat,Weapons

24

C

F24C 3/02 (2006.01) F23J 13/02 (2006.01) F23L 17/04 (2006.01) F24B 1/18 (2006.01) F24C 3/00 (2006.01)

Patent

CA 2115788

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 slanted flue attachment wall is attached to and extends between the top wall and rear wall. The slanted flue attachment wall is disposed at obtuse angles relative to the top wall and rear wall. A first pipe member is orthogonally attached to the flue attachment wall and is in fluid communication with the combustion chamber for conveying combustion products from the combustion chamber. A second pipe member having a diameter larger than the first pipe member is disposed concentrically around the first pipe member. The first and second pipe members define an annular space therebetween forming an air intake duct. A combustion air duct extends between and is in fluid communication with the air intake duct and the combustion chamber for supplying combustion air to the combustion chamber. The exhaust pipe and fresh air pipe are respectively attached to the first and second pipe members and can be selectively oriented to extend away from the fireplace in a substantially vertical or horizontal direction.

L'invention porte sur un foyer au gaz à alimentation directe conçu pour être couplé à un ensemble de deux tuyaux concentriques, dont l'un sert à l'alimentation en air frais et l'autre à l'évacuation des gaz de combustion. Un brûleur au gaz est disposé dans une chambre de combustion, circonscrite par des parois supérieure, inférieure, arrière et latérales. Une paroi à laquelle se rattache le système d'évacuation des gaz s'agence aux parois arrière et supérieure en y formant un angle obtus. Un premier tuyau est couplé à angle droit à cette paroi et communique avec la chambre de combustion de façon à en permettre l'évacuation des produits de combustion. Un second tuyau, d'un diamètre supérieur au premier, est disposé de façon concentrique par rapport au premier. L'espace entre les deux tuyaux, de géométrie annulaire, constitue un tuyau de prise d'air. Un tuyau d'alimentation d'air relie le tuyau de prise d'air et la chambre de combustion, fournissant à celle-ci de l'air pour les besoins de la combustion. Les tuyaux d'évacuation des gaz et d'alimentation en air se rattachent respectivement au premier et au second tuyaux. Les tuyaux peuvent être orientés horizontalement ou verticalement par rapport au foyer.

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