초록 ▼

A water heater including a water tight tank having a tank wall and top and bottom head members welded thereto. A combustion chamber and burner are mounted beneath the bottom head. A pair of concentrically arranged jacket members are mounted around the tank wall with the space between the jacket memb

A water heater including a water tight tank having a tank wall and top and bottom head members welded thereto. A combustion chamber and burner are mounted beneath the bottom head. A pair of concentrically arranged jacket members are mounted around the tank wall with the space between the jacket members serving as a flow passageway through which combustion air flows downwardly to the combustion chamber. A pair of concentrically arranged tube assemblies are connected to the top of the heater. The inside tube assemblies carry products of combustion from the heater and the space between the inside tube assemblies and the outside tube assemblies serve as a flow passageway through which combustion air flows to the flow passageway space between the jacket members.

대표청구항 ▼

A water heater comprising: a water tight tank means including a tank wall and top and bottom head members welded thereto; a combustion chamber located beneath said bottom head member; a burner means mounted in said combustion chamber; a flue tube means extending upwardly in said water tight tank mea

A water heater comprising: a water tight tank means including a tank wall and top and bottom head members welded thereto; a combustion chamber located beneath said bottom head member; a burner means mounted in said combustion chamber; a flue tube means extending upwardly in said water tight tank means for conducting products of combustion from said combustion chamber up through said top head member; combustion products vent means connected directly to said flue tube means for conducting the products of combustion from said flue tube means directly to the outside through an exterior wall in the space in which the water heater is installed; combustion air transmission means for conducting combustion air directly from outside through an exterior wall in the space in which the water heater is installed to said combustion chamber, said combustion air transmission means including a first air passage space between a first jacket member mounted around and spaced from said tank wall and a second jacket member mounted around and spaced from said first jacket member, said first and second jacket members being concentrically arranged with the space therebetween constituting said first air passage space, said space between said first jacket member and said tank wall filled with insulation material.