AO Smith ProMax Electric Water Heaters

AO Smith ProMax electric water heaters offer exceptional energy savings and durability. There are plenty of installation choice with ProMax electric water heaters, including tall, short and lowboy models.

Manuals -


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  • 55 Gallon ProMax Residential Electric Water Heater - Tall Model View Specs

    $859.95 / each

    $1,669.90 / box
    2 x $834.95

    On Backorder Expected to Ship in 3-4 Weeks
  • 55 Gallon ProMax Residential Electric Water Heater - Tall Model View Specs

    $739.95 / each

    $1,435.90 / box
    2 x $717.95

    On Backorder Expected to Ship in 3-4 Weeks
  • 50 Gallon ProMax Residential Electric Water Heater - Tall Model View Specs

    $729.95 / each

    $1,417.90 / box
    2 x $708.95

    On Backorder Expected to Ship in 3-4 Weeks
  • 50 Gallon ProMax Residential Electric Water Heater - Tall Model View Specs

    $579.95 / each

    $1,125.90 / box
    2 x $562.95

    In Stock! (2 Available) Ships in 24-48 Hrs
  • 40 Gallon ProMax Residential Electric Water Heater - Short Model (10 Yr Warranty) View Specs

    $669.95 / each

    $1,285.90 / box
    2 x $642.95

    On Backorder Expected to Ship in 3-4 Weeks
  • 50 Gallon ProMax Residential Electric Water Heater - Short Model View Specs

    $579.95 / each

    $1,125.90 / box
    2 x $562.95

    On Backorder Expected to Ship in 3-4 Weeks
  • 40 Gallon ProMax Plus High Efficiency Residential Electric Water Heater - Tall Model View Specs

    $599.95 / each

    $1,163.90 / box
    2 x $581.95

    On Backorder Expected to Ship in 3-4 Weeks
  • 40 Gallon ProMax Plus High Efficiency Residential Electric Water Heater - Tall Model View Specs

    $729.95 / each

    $1,417.90 / box
    2 x $708.95

    On Backorder Expected to Ship in 3-4 Weeks
  • 50 Gallon ProMax Plus High Efficiency Residential Electric Water Heater - Tall Model (10 Yr Warranty) View Specs

    $639.95 / each

    $1,247.90 / box
    2 x $623.95

    In Stock! (3 Available) Ships in 24-48 Hrs
  • 50 Gallon ProMax Plus High Efficiency Residential Electric Water Heater - Short Model (10 Yr Warranty) View Specs

    $729.95 / each

    $1,417.90 / box
    2 x $708.95

    On Backorder Expected to Ship in 3-4 Weeks
  • 28 Gallon ProMax Residential Electric Water Heater - Lowboy Top Connect Model (10 Yr Warranty) View Specs

    $819.95 / each

    $1,579.90 / box
    2 x $789.95

    On Backorder Expected to Ship in 3-4 Weeks
  • 38 Gallon ProMax Residential Electric Water Heater - Lowboy Model View Specs

    $829.95 / each

    $1,599.90 / box
    2 x $799.95

    On Backorder Expected to Ship in 3-4 Weeks
  • 28 Gallon ProMax Residential Electric Water Heater - Lowboy Side-Connect Model View Specs

    $669.95 / each

    $1,299.90 / box
    2 x $649.95

    In Stock! (1 Available) Ships in 24-48 Hrs
  • 30 Gallon ProMax Speciality Residential Electric Water Heater - Lowboy Side-Connect Model View Specs

    $689.95 / each

    On Backorder Expected to Ship in 3-4 Weeks
  • 40 Gallon ProMax Residential Electric Water Heater - Lowboy Side-Connect Model View Specs

    $699.95 / each

    $1,357.90 / box
    2 x $678.95

    On Backorder Expected to Ship in 3-4 Weeks
  • 27 Gallon ProMax Residential Table  Top Electric Water Heater View Specs

    $1,099.95 / each

    $2,145.90 / box
    2 x $1,072.95

    On Backorder Expected to Ship in 3-4 Weeks
  • 2-1/2 Gallon ProMax Point-of-Use Residential Electric Water Heater View Specs

    $249.95 / each

    $499.90 / box
    2 x $249.95

    In Stock! (2 Available) Ships in 24-48 Hrs
  • 6 Gallon ProMax Compact Residential Electric Water Heater View Specs

    $259.95 / each

    $519.90 / box
    2 x $259.95

    In Stock! (4 Available) Ships in 24-48 Hrs
  • 10 Gallon ProMax Compact Residential Electric Water Heater View Specs

    $369.95 / each

    $719.90 / box
    2 x $359.95

    In Stock! (2 Available) Ships in 24-48 Hrs
  • 10 Gallon ProMax Compact Residential Electric Water Heater (240V, 6000W) View Specs

    $369.95 / each

    $719.90 / box
    2 x $359.95

    On Backorder Expected to Ship in 3-4 Weeks