| 摘要 |
A water heater comprising a water-tight tank having a combustion chamber located in the bottom portion of the tank. A combustion air blower is operable to draw combustion air into the combustion chamber through a vertical tube in which the air flows from atmosphere downwardly into the combustion chamber. Combustion air entering the combustion chamber supports combustion of gas emanating from burners positioned in the combustion chamber. The products of combustion (flue gases) are drawn upwardly through a plurality of tubes, which extend from the combustion chamber to a flue gas collector box on the top of the water heater. From the flue gas collector box, the flue gases flow into an air/flue product mixing chamber and then out through an exit port. <IMAGE> |
