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Gladiator Startup Guide
Gladiator Startup Guide

Gladiator Startup Guide

Congratulations on the purchase of your new Gladiator Water Heater from Rheem! This site gives you step by step instructions to 3 really important startup activities. Please see the videos below.

Gladiator Startup Video - Begin Heating Water

How to Connect – Connect your Water Heater to WiFi

Warranty Registration – Register via Rheem Contractor App

Warranty Registration – Go to

If you don’t have the Rheem Contractor App installed, simply click here to head over to to get your new Gladiator registered.