Rheem 40 Gallon Electric Water Heater Reviews – 2020

The Rheem 40 Gallon electric water heater has enough capacity for an average size family of three or four during daily water usage. Using a 240-volt electrical connection, the tank is capable of delivering up to 54 gallons of hot water during the first hour of use. The dual 4500-watt heating elements act quickly, making sure you have plenty of hot water whenever you need or want.

Rheem 40 Gallon electric water heater

Rheem 40 Gallon electric water heater feature dual copper heating elements and a six-year warranty


  • .92 – .93 UEF
  • .96 – EF
  • Isolated tank design reduces conductive heat loss
  • Dual 3000W or 4500W copper heating elements depending on unit


  • FHR: 33 – 62 gallons, based on gallon capacity
  • Recovery: Up to 21 GPH at a 90° F rise, depending on model**

Longer Life

  • Premium grade anode rod provides long-lasting tank protection Features
  • Electric junction box located above heating elements for easy installation
  • Over-temperature protector cuts off power in excess temperature situations
  • Temperature and pressure relief valve included
  • Low lead compliant

Rheem 40 Gallon electric water heater Reviews

UEF 0.93
Install Location Indoor
Primary Warranty 6 Yrs
Number Of Back To Back Showers 1
Tank Capacity 40