• Vertex

    Through an inspired blend of innovation, efficiency and years of industry expertise, A. O. Smith has created a state-of-the-art family of Vertex™ products that provide a long-lasting supply of hot water. They are easy to install, with dimensions and installation requirements comparable to standard power-vent and power direct-vent units.

    ProMax®

    The ProMax® family of gas water heaters offers a wide range of water heating solutions. The high efficiency, side loop venting, Ultra-Low NOx and high recovery models are ideal for families with high demand for hot water.

    Effex®

    It's a simple fact: our Effex® product line is the most efficient and advanced line of conventional vent gas water heaters on the market. This makes it an ideal choice for the homeowner who wants to replace an older, inefficient water heater without the hassle.

    Energy Saver

    Our Energy Saver models meet all of today's governmental requirements for manufactured housing installation. The units are available in either standard vent or direct vent models, with your choice of natural gas or propane operation.


  • Gas Water Heaters

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    Capacity
    Product Line
    Limited Tank Warranty
    Features
    Type
    Venting
    Fuel Type
    First Hour Rating
    Emissions
    Energy Factor
    Thermal Efficiency
    NAECA 3 Status
    Water Connection Location
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