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Around the home, peace-of-mind is an invaluable commodity. So we created the Rheem® Gladiator™ Electric Water Heater. Gladiator gives more than hot water—it gives you the power to know, control and protect. It’s full of built-in smart features to help prevent cold showers, alert you of issues before there’s no hot water and protect your home from potential water damage.


Intelligent leak detection system provides real-time notifications that prevent catastrophic failure


Exclusive technology provides performance updates and alerts via mobile device1


All-inclusive leak detection and prevention system with proprietary auto shut-off valve limits leakage to no more than 20 ounces of water2

gladiator model

Easy to Install & Service

Because Gladiator installs like a standard electric water heater, installation is hassle-free making it perfect for replacement—and it’s simple to service


Gladiator Gives You the Power

Introducing Gladiator, the first residential water heater to give you the power to know, control and protect.

  • Auto Water Shutoff Valve

    Protect your home from water damage with this all-inclusive leak prevention system that limits a leak to no more than 20 ounces of water2

  • Protect Your Home

    By shutting off the flow of water, Gladiator can help you avoid an average of $4,000 in water leak damage3

  • Built-in EcoNet Technology

    Complete control of your water heater—from adjusting water temperature and tracking energy usage to setting vacation mode—all from a smart phone1

  • Water Temp Control

    Adjust water set temperature to balance your family’s hot water needs via the EcoNet App and hands-free voice control with Amazon Alexa or Google Home4

  • Set Vacation/Away Mode

    Save energy on water heating costs while you are away for a week or just for the day—it’s easy to set from your phone even if you have already left home!1

  • Integrated EcoNet Monitoring with WiFi

    Receive immediate notification of leaks and service needs through your phone and via EcoNet App1

  • Hot Water Availability Indicator

    Know you have enough hot water before you jump into the shower1

  • Element Health

    Know if an element is failing so you can proactively replace it before it becomes a problem1

  • Energy Usage Tracking

    View weekly, monthly and yearly energy usage reports from your phone to help you better manage consumption1

  • Diagnostic Mode

    Allows plumber to view diagnostic information via the Rheem® Contractor App or EcoNet App while at the water heater to expedite service5




Knowledge is Power

With integrated WiFi, homeowners can avoid cold showers, detect leaks and more. It’s all possible with Gladiator and the EcoNet® App.1

Video Gallery

The Power to Protect

The Power to Control Energy Bills

Powering Hot Showers

The Power to Know

Three Gladiator Sizes to Fit Your Budget for Any Application

40 Gallon

Ample hot water for households with 2 to 4 people

50 Gallon

Ample hot water for households with 3 to 5 people

55 Gallon

Ample hot water for households with 3 to 5 people


Smart Inside and Out

Explore Gladiator’s key components.

  • LeakGuard Auto Shut-Off Valve

    In the unlikely event of a water leak, it shuts off the flow of water

  • EcoNet Smart Monitoring System

    Control temperature, set Vacation or Away Mode, view energy usage and know immediately about leaks and service alerts from anywhere with built-in EcoNet WiFi Technology and the EcoNet App1

  • Built-in 360˚ LeakSense™ Leak Detection

    Find out about an issue before there’s no hot water with a built-in leak detection system that detects any leak—large or small, internal or external—in as little as 15 seconds7

  • Stainless Steel Heating Elements

    More durable than standard heating elements, stainless steel elements deliver longer service life

  • Rheemglas® Porcelain Tank Lining

    This Rheem-exclusive coating technology protects the tank and limits the chances of an internal water leak

  • Brass Drain Valve

    Enjoy simplified maintenance and easier draining than with a standard plastic drain valve

  • Premium Grade Anode Rod

    This upgraded rod helps protect the tank from corrosive minerals in your water


At Rheem, we focus on innovating with intent, engineering solutions with lifetime sustainability in mind—from material selection to smart features to responsible recycling.

Get the Protection of a Gladiator

Visit The Home Depot and Ask an Associate about the Gladiator Electric Water Heater