Last Updated on May 14, 2023 by Pro Handyman Editorial Team

Prolonging the Lifespan of Your Water Heater: A Comprehensive Guide

The utility of water heaters must be considered. These appliances are indispensable in our daily lives, from providing warm water for bathing to facilitating chores such as dishwashing and laundry. However, the lifespan of a water heater is often a source of concern for many homeowners. Hence, we present a detailed guide to extend the life of your water heater, ensuring its efficient operation and saving you unnecessary costs.

Understanding the Typical Lifespan of a Water Heater

The critical question is, “Can a water heater last 30 years?” Unfortunately, while this is a possibility, it’s not common. Generally, the lifespan of a standard water heater ranges between 8 and 12 years. Several factors determine this lifespan, including:

Water Heater Type: Tankless water heaters typically have a longer lifespan than traditional tank models.
Unit Quality: Renowned brands and superior-quality units with thicker tanks and better insulation tend to outlast budget models.
Maintenance Level: Regularly maintained water heaters outlive neglected ones.
Water Quality: Hard water can reduce the lifespan of a water heater due to mineral deposits buildup.

Enhancing Your Water Heater’s Lifespan

Preserving the longevity of your water heater not only saves you from unexpected breakdowns but also helps avert unnecessary expenditure. Here are four crucial steps you can take:

Regularly Flush the Tank

Sediment buildup at the bottom of the tank can cause overheating, reducing the unit’s lifespan and leading to costly repairs. Regular flushing is, therefore, essential. The recommended frequency is once a year, but challenging water conditions may necessitate more frequent flushing.

Monitor the Pressure Relief Valve

The pressure relief valve is crucial for releasing pressure when the tank overheats. A malfunctioning valve can lead to a tank rupture. Regular inspection to ensure its proper functioning is vital.

Assess Your Water Pressure

Protecting your water heater from high pressure is paramount. City water pressure should be below 80psi, manageable by installing a Pressure Regulating Valve (PRV) on your main water line. Thermal pressure is another concern, often exceeding 80psi during non-use periods. A thermal expansion tank can help manage this pressure.

Improve Water Quality

Hard water accelerates sediment buildup, leading to corrosion and a reduced lifespan. We recommend using a water softener or filtration system to mitigate these effects.

Recognizing Warning Signs of a Failing Water Heater

Despite meticulous care, every water heater will eventually require replacement. Noticing these warning signs can help you preempt significant issues:

The unit is over eight years old.
There’s water leaking from the tank.
The water isn’t as hot as it used to be.
Hot water runs out faster than before.
There are unusual noises from the unit.
The pilot light keeps extinguishing (for gas water heaters).
Your water is discolored.

Deciding When to Replace Your Water Heater

Occasionally, replacement is a more cost-effective solution than continuous repairs. Here are a few considerations when deciding to replace your unit:

Age of the Unit: Replacement might be a viable option if your water heater is nearing its expected lifespan.
Warranty Coverage: If your unit is under warranty, you may be eligible for free repairs or replacement.
Cost of Repairs: If the repair costs are more than half the price of a new unit, it would be more economical to consider a replacement.

Professional Water Heater Installation

Installing a new water heater can be a complex task, necessitating the skills of a qualified professional. This ensures you choose the right size and type of unit for your home, and it’s installed correctly, promising years of efficient service.

Regular Water Heater Maintenance

Routine maintenance is pivotal in prolonging the lifespan of your water heater. However, consider hiring a professional service if you need more certainty about conducting it yourself. Regular maintenance includes tasks such as:

Inspecting the Anode Rod: The anode rod attracts corrosive elements, protecting the tank from corrosion. Inspect it every 2-3 years and replace it when necessary.
Checking the Temperature and Pressure Relief Valve (T&P Valve): As mentioned earlier, the T&P valve releases pressure from the tank to prevent overheating. Regularly testing its functionality is crucial.
Assessing for Leaks and Drips: Look for water leaks or drips from the tank or connected pipes. Addressing these issues promptly can prevent more significant damage.

Performing a Hot Water Heater Maintenance Flush

Sediment buildup in your water heater tank is common, particularly for households with hard water. Over time, this sediment can corrode the tank walls and cause leaks. We recommend performing a maintenance flush annually to rid your tank of sediment. Here’s how:

Disconnect the gas or electricity for safety.
Attach a garden hose to the drain valve at the tank’s bottom.
Turn off the cold water supply to the tank and run a hot water faucet in your house.
Open the drain valve, allowing the tank to empty.
Once emptied, close the drain valve, partially fill the tank with cold water, and drain again.
Repeat until the water runs clear.
Close the drain valve, remove the hose, and turn on the cold water supply.
Reactivate the gas or electricity supply when water emerges from your hot water faucets.

Checking the Anode Rod

Anode rods are vital components of water heater tanks. These rods attract minerals like calcium that can corrode the tank lining. Regular inspection and replacement of the anode rod can significantly extend the life of your water heater.

Disconnect the gas or electricity supply for safety.
Drain a few gallons of water to check for rust within the tank.
Loosen the hex nut on your tank to access the anode rod.

If the rod reveals large portions of core wire or a thick deposit layer, it’s time for a replacement.

Collaborating With Your Local Water Heater Maintenance Company

Water heater maintenance can sometimes be complex and may require professional assistance. If you encounter significant issues or feel uncomfortable performing any tasks, don’t hesitate to contact your local water heater maintenance company. A reliable contractor in your contacts can be invaluable, particularly in emergencies. Always prioritize safety

Adjusting the Water Heater’s Temperature

Maintaining an optimal temperature for your water heater ensures a comfortable hot water supply but also aids in extending the unit’s life. Here’s how to adjust the temperature:

Locate the thermostat on your water heater. For gas heaters, it’s typically part of the gas valve, while for electric heaters, it’s usually behind an access panel.
Adjust the dial to the desired temperature. The Energy Department recommends a setting of 120°F (49°C) to balance energy efficiency and hot water supply.
After adjusting, allow the water heater to rest for a few hours, then test the water temperature at a faucet to confirm the new setting.

Remember to exercise caution when adjusting the temperature. Overheating can increase pressure in the tank, creating a potential safety hazard.

Insulating Your Water Heater

Proper insulation can significantly improve your water heater’s efficiency and lifespan. Here’s a simple guide to insulating your water heater:

Purchase a water heater insulation blanket from a home improvement store. Ensure it matches your water heater’s dimensions.
Wrap the insulation blanket around the water heater, exposing the thermostat and top of the gas heaters.
Secure the blanket in place with the tape provided.

Electric water heaters don’t cover the thermostat; for gas, don’t cover the top of the burner compartment.

Checking the Expansion Tank

Many homes have a water heater expansion tank to absorb excess pressure from the water heater. Regular checks can prevent issues:

Locate the expansion tank, usually installed above or near your water heater.
Tap the top of the tank (it should sound hollow) and the bottom (it should sound like it’s full of water).
If both the top and bottom sound the same, the expansion tank might not function correctly and may need servicing.

Regularly Replacing Water Heater Components

Some water heater components wear out over time and need replacing. Regularly replacing worn-out parts can extend your water heater’s life:

Heating elements: In electric water heaters, the heating elements can burn out and should be returned when this happens.
Thermostat: If your water heater isn’t heating water to the correct temperature, the thermostat may need replacing.
Dip tube: This tube directs incoming cold water to the bottom of the tank. A worn-out dip tube can lead to hard water mixing with the hot water at the top of the tank, reducing your water heater’s effectiveness.

Consider Upgrading to a Tankless Water Heater

If your water heater is nearing the end of its lifespan, consider upgrading to a tankless water heater. These heaters provide hot water on demand, are more energy-efficient, and have a longer lifespan than traditional tank heaters. Consult with your local water heater specialist to see if a tankless water heater is right for your home.

By following these guidelines, you can ensure your water heater stays in peak condition for as long as possible, providing your home with consistent hot water while saving you money in the long run.

In Conclusion

Your water heater is a significant investment, and extending its lifespan can save you considerable expense and inconvenience in the long run. Following this comprehensive guide ensures your water heater remains efficient and functional for many years. Regular maintenance, timely repairs, and a vigilant eye for any warning signs are the keys to a long-lasting water heater.

Remember, prevention is better than cure when it comes to water heater care. So invest time and effort into the upkeep of your water heater today to enjoy the benefits of hot water on demand tomorrow.