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How to Decide When to Replace a Water Heater

Dec 21, 2023

What if that soothing, relaxing, escape to the shower was no longer there because the water heater was not performing? No longer would you have the happy place that releases fresh ambitions for the new day or the shower that promotes sleep in the evening. You wouldn’t have a nice warm washcloth to wash your face with or even hot water to clean the dishes. How does a proactive person know when to replace a water heater to keep the household going? 

How Long Do Hot Water Heater Tanks Last?

Evidence that a replacement water heater is needed with a picture of a damaged tank.

Knowing when to replace a water heater depends on a few factors. The average, traditional tank-style water heaters tend to last around 10-15 years. However, this depends on maintenance, water quality, and usage patterns. Let’s break it down! 


Tankless water heaters are becoming popular. These little beauties typically last around 20 years, allowing you to enjoy hot water for a long time without worrying about replacements. 


How long does a gas water heater last? Gas heaters generally last for around 10-15 years. Look for any signs of trouble after the 10-year mark if you own a gas water heater. 


When should electric water heaters be replaced? These tend to have a slightly shorter lifespan, ranging from 8-12 years. However, proper maintenance and regular inspections will help to extend their life spans. 


As well as understanding the general lifespans for different water heaters, you might experience frequent leaks, rusty water, or inconsistent heating issues that indicate replacing the water heater is needed. 

Leaking Tank

A top indicator for replacing the water heater is a leaking tank. The bright side is that a new water heater means no more pesky leaks and a lot less stress. Initially, investing in a new water heater seems like a big expense, but in the long run, you will save money by preventing further leaks and potential repairs for damage.

Water Discoloration

Yuck! No one likes to see brown or rusty water flowing from the faucet. Water discoloration is often caused by sediment buildup or corrosion inside the tank. Simply flushing the tank only sometimes solves the problem. In many cases, the best solution is to replace the water heater altogether. The good news is that plenty of options are available when it comes to replacing your water heater. You can find a new one that fits your needs and budget. 

Loud Noises

When your hot water tank starts making strange sounds, it could be a sign that it’s reaching the end of its lifespan. Replacing a water heater is not something to stress about, though. The actual water heater replacement time can be relatively quick and straightforward, especially if you hire a professional. By purchasing a new water heater, you can put an end to those annoying loud noises and enjoy a more efficient and reliable hot water system. 

No Hot Water

So, you wake up one morning, ready for a nice hot shower and BURR – no hot water. What a bummer! Sometimes, a simple repair might do the trick, but replacing it will be a solid solution if you’ve encountered this problem frequently. When replacing the hot water tank, consider the right size and type for your needs. The time it takes to replace a water heater can vary, but with the help of a professional, it can be done efficiently. 

Replace Hot Water Tank VS Repairs

Yes, there are times when repairs for your water tank will be a good solution to save you from completely replacing the water heater. If you are experiencing minor leaks or sporadic temperature inconsistencies, there’s a good chance that simple repairs will get your system back on track. There’s no reason for a complete water heater replacement when the following repairs and replacements will solve the problems: 


  • Broken heating elements replaced. 
  • Pressure relief valves repaired or replaced. 
  • Thermostats repaired or replaced .
  • Other small parts that can be easily replaced. 


These repairs won't require investing in a brand new water heater. So, if your tank is experiencing these kinds of problems, don't worry too much! Give repair a shot before considering replacement. It saves you a good chunk of money.

Ways to Make Your New Water Heater Last

With the help of Moe’s Plumbing, you have found a high-quality water heater replacement that suits your needs perfectly. Your new water heater will go the distance to serve you well when you take care of it. Maintain your new water heater in the following ways and prolong its life: 


  • Flush the tank once to twice a year to remove any sediment buildup.
  • Check the anode rod for corrosion and replace it if necessary.
  • Ensure proper ventilation around your water heater.
  • Set the thermostat a few notches lower than the maximum will reduce wear and tear on the heater.


You will maximize the lifespan of your new water heater and enjoy an uninterrupted hot water supply when you follow the above professional tips. 

Is it Time for a Replacement Water Heater? Call Moe's!

When it's time for a replacement water heater, look no further than Moe's Plumbing! We're the experts in replacing water heaters and ensuring your home has a reliable source of hot water. 


Hot water tanks don't last forever, so if you've had yours for a while, it might be time for an upgrade. It's always a good idea to keep an eye on your water heater and consider replacing it if it's showing signs of aging or if it's been over a decade since you got a new one. When in doubt, give Moe's Plumbing a call! We'll assess your water heater and provide you with the best advice on when it's time for a replacement. Trust us to handle all your water heater needs!

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