What Size Anode Is Used In 80 Gallon Sunearth Water Heater?

Utilizing components of the earth to produce hot water for our everyday use has gained notoriety in recent years, with products like the SunEarth water heater becoming increasingly popular. But what size anode is used in a 80 gallon water heater?

An anode is an important piece of the water heater, as it helps guard the tank from corrosive elements. Here, we’ll discuss more about the anode and what size is needed for an 80 gallon SunEarth water heater. Read on to find out more!

What is an Anode Rod and What Does it Do?

Anode rod (also referred to as hot water tank anode rod) is an essential part of a hot water heater system.

It is a sacrificial metal rod, usually made of magnesium or aluminum, designed to attract corrosion and protect the metal parts of the hot water tank. Without an anode rod, the metal components of the hot water heater can corrode, compromising the integrity of the tank and leading to leaks and costly damage. It is a relatively simple and inexpensive maintenance item that can extend the functioning life of your hot water tank by years.

What Size Anode Rod is Used in an 80 Gallon SunEarth Water Heater?

A standard 80 gallon SunEarth water heater will require a magnesium alloy anode rod that is 3 1/2″ in diameter and at least 4-5 feet long.

It is important to note that both the diameter of the rod and its length are critical to the proper functioning of the hot water heater.

What are the Benefits of a Magnesium Alloy Anode Rod in an 80 Gallon SunEarth Water Heater?

A magnesium alloy anode rod is specifically designed for use in SunEarth 80 gallon hot water tanks.

It offers several benefits to the system, including:

  • High corrosion resistance for improved overall system performance.
  • Reduced risk of leaks and damages that can occur from corrosion and scale buildup.
  • Extended functioning lifetime of the hot water system.

  • Cost-effective maintenance item.

How often Should an Anode Rod be Replaced?

It is generally recommended that an anode rod in an 80 gallon SunEarth water heater be replaced at least every five years. Periodic inspection of the anode rod should be done to ensure that it is not broken or corroded. If either of those issues are encountered, it is time to perform maintenance and replace the rod.


Anode rods are vital to the overall performance of a hot-water heater system, and an 80 gallon SunEarth water requires a specific size of anode rod for optimal performance. It is important to ensure that the correct size of anode rod is installed, and to replace it periodically in order for the system to remain in working order.

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