Wondering whether your water heater is nearing the end of its life? You’re not alone. It’s one of the most common questions homeowners ask, and with good reason. Hot water is essential for daily comfort. Water heater failure can lead to cold showers, water damage, and unexpected repair costs.
Whether you have a traditional tank water heater or a newer tankless model, this guide will help you understand:
- How long your system is likely to last
- What affects its lifespan
- When it’s time to repair or replace it
How Long Do Traditional Tank Water Heaters Last?
Most standard tank water heaters last 8 to 12 years. These systems store and heat water continuously, which causes wear and tear over time.
Factors That Influence Tank Water Heater Lifespan:
The lifespan of your traditional tank water heater depends on several key factors. For example, hard water contains minerals that build up inside the tank. Over time, mineral buildup reduces efficiency and corrodes the tank.
Routine maintenance can help your tank water heater last longer. The amount of hot water your household uses will also affect the longevity of your traditional tank unit. The more you use it, the shorter its lifespan will likely be.
Signs Your Tank Water Heater May Be Failing:
- Rusty or discolored hot water
- Inconsistent water temperature
- Rumbling or popping sounds
- Leaks or pooling water around the unit
If your unit is over 10 years old and experiencing any of the issues above, it may be time to consider a replacement.
How Long Do Tankless Water Heaters Last?
Tankless water heaters typically last 15 to 20 years. This is significantly longer than traditional models. These units heat water on demand, which puts less stress on the system overall.
Factors That Influence Tankless Water Heater Lifespan:
If your home has hard water, mineral scaling can clog the system unless it’s descaled regularly. Cleaning or replacing the inlet filters keeps the unit running efficiently and helps prevent premature failure. How long a hot water heater lasts heavily depends on the way it was installed. If a tankless water heater is not properly sized, it will not last nearly as long as it should.
Signs Your Tankless Water Heater Needs Attention:
- Water isn’t as hot as it used to be
- System frequently shuts off
- Error codes displayed on the unit
While tankless systems last longer, they still require regular maintenance. If yours is over 15 years old, it’s a good idea to start planning for a replacement.
Repair or Replace? What to Consider
Knowing when to replace a water heater can save you time, money, and stress. Here’s how to decide between a repair and a full system replacement.
If your water heater is still within its expected lifespan and showing only minor issues, a repair may be all you need. Consider replacement if:
- Your tank water heater is over 10 years old
- Your tankless water heater is over 15 years old
- Repairs are becoming frequent or expensive
- You’re not getting enough hot water to meet your needs
A licensed plumber from Deljo Heating & Cooling can inspect your system and help you determine the most cost-effective solution.
Maintenance Will Extend Your Water Heater’s Lifespan
Regular maintenance can significantly extend the life of your water heater and improve performance. For tank models, flushing the system once a year helps remove sediment that builds up over time and reduces efficiency. Replacing the anode rod every 3 to 5 years prevents rust and corrosion inside the tank.
If you own a tankless system, routine descaling prevents mineral buildup from clogging internal parts. Cleaning inlet filters and checking for leaks should also be part of your regular routine. And of course, having your system professionally inspected every year or two ensures minor issues are caught before they become expensive repairs.
Need Water Heater Repair or Replacement in Chicago?
When you need water heater services in Chicago, Deljo Heating & Cooling is here to help. We provide expert water heater repair and installation services across the Chicago area. This includes maintenance, replacement, and upgrades for both tank and tankless water heaters. Our team can also advise on energy-efficient models that can lower your utility bills and qualify for local rebates.
If you’re not sure whether to repair or replace your system, our licensed plumbers can assess your setup and recommend the best option for your home and budget.
Call Deljo Heating & Cooling today at (773) 888-4229 or schedule your appointment online.
