Omnia Mechanical Group

571 Timpson Place Bronx, NY 10455

Phone: 212-534-2500

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How Long Do Different Types of Water Heaters Last?

On average, how long does a water heater last? You can expect a water heater to last 8-20 years on average. The primary contributor to water heater lifespan is the type. Tankless models last significantly longer than traditional tank models. Water quality also plays a role in the longevity and reliability of the appliance, with hard water often shortening the lifespan. Finally, maintenance and usage contribute to the life of a water heater, with regular maintenance improving life expectancy averages and heavy usage straining them.

While it’s best to consult a manufacturer’s specifications for your specific water heater model for the most accurate lifespan estimate, you can base averages on the styles. Discover the different lifespans of common water heater models.

Reviewing Different Models To Determine How Long a Water Heater Lasts

Traditional Tank Water Heaters

A traditional tank water heater is a system that stores a large volume of water, usually 30-80 gallons, in an insulated tank, constantly heating to a pre-set temperature. The heating element depends on the model. Electric models use electric resistance heating elements submerged in the water, while gas models use burners located beneath the tank. The average lifespan of a traditional tank water heater is 8-12 years.

The average lifespan depends on maintenance and usage. Still, tank water heaters show signs when they begin to fail, like dangerous leaks and rusty water, which hints at internal tank corrosion. When the unit cycles on, you or your tenants may hear a rumbling or banging noise, typically stemming from sediment buildup, which causes uneven heating. Waning water heaters may provide insufficient hot water during peak demands.

Tankless Water Heaters

The average lifespan of a tankless water heater is 15-20 years. The systems are more efficient because they do not store water like traditional water heaters; they heat water as it passes through the unit.

The powerful heating elements, gas or electric, only activate when you turn on a hot water faucet. Unlike traditional tank systems that run constantly, tankless systems conserve energy and potentially reduce utility bills.

As a property owner, be aware of the higher upfront costs of tankless water heaters and possible flow rate limitations. Depending on the size of your building, a tankless system may struggle to provide enough hot water for simultaneous high-demand uses.

As with tank systems, tankless water heaters require regular maintenance to ensure efficiency and longevity. If you or your tenants notice inconsistent water temperature and reduced hot water flow, consider scheduling a system assessment with Calray Boilers.

Hybrid and Heat Pump Water Heaters

Regarding how long water heaters last, hybrid and heat pump water heaters fall in the middle of the pack at 13-15 years. Hybrid and heat pump water heaters use the same technology, focusing on heat transfer, not generation. Instead of generating heat using traditional electric elements or gas burners, these systems use refrigerant, like an air conditioner in reverse. They absorb heat from the surrounding air and transfer it to the water stored in a tank. The process is incredibly energy efficient, often requiring less energy than a conventional electric tank heater.

You can select a self-contained unit with an integrated heat pump or a split system with a separate heat pump and storage tank. You can also choose a hybrid water heater that combines heat pump technology with traditional electric resistance heating elements, which only switch to less efficient heating modes during high-demand periods.

Hybrid and heat pump units are not suitable for every building. They are typically larger than traditional tanks and can cost more. The units are also best for properties with moderate hot water demands. The upfront cost of these water heaters is usually higher than the other units on this list.

Understanding the Importance of Regular Maintenance

Annual Flushing, Anode Rod Inspections, and Professional Servicing

Determining how long a water heater lasts depends on the level of care and maintenance its owner demonstrates. Suppose you commit to annual flushings, regular anode rod inspections and professional servicing. In that case, you can expect a water heater to maintain operations toward the far end of its lifetime expectations, so 12-20 years, depending on the type.

Annual flushing is necessary because it removes sediment, protects the heating elements, and prevents corrosion. These benefits depend on the type of heater you have. Still, the primary advantage of annual flushing is the removal of debris and mineral deposits. As sediment builds up in the tank or system, it reduces efficiency, increases heating costs, and leads to premature failure.

You can find anode rods in traditional tank-style water heaters. They are a magnesium, aluminum, or zinc component surrounded by a steel core wire. The rod attracts corrosive elements in the tank using the process of electrolysis. The rod extends the tank’s life by sacrificing itself to corrosive elements. If you have a tank-style water heater, it is necessary to replace the anode rod every 1-3 years, depending on regular inspections.

Every water heater requires occasional professional servicing. Tankless systems may only need servicing every 1-2 years, depending on issues like hard water, usage, and previous issues, but traditional, hybrid, and heat pump systems typically require annual servicing and inspections.

Increasing How Long a Water Heater Lasts With Calray Boilers

Annual Service Contracts and Routine Inspections

How long does a water heater last? The answer depends on several factors, some out of your control and others well within. With Calray Boilers’ annual service contracts, you can rest assured that your water heater and boiler systems receive the scheduled maintenance and inspections they need to achieve optimum lifespans. Our qualified technicians will perform regular checkups to catch minor problems early, preventing escalation and premature system failure. Contact us at 212-722-5506 to learn more about how we can optimize water heater operation and extend its useful life.

Our Privacy Policy

Omnia Mechanical Group(the “Company”) strives to ensure the highest standards for property listings and customer information privacy. Please review the following statement to learn about our company practices and policies. Please be aware that our Privacy Policy is subject to change at any time.

1. Purpose.

This Privacy Policy (“the Policy”) provides information on how the Company uses your personal information. By agreeing to the Policy, you agree to our collection and use of your personal information as described in the Policy. This Privacy Policy is effective for all new users of

2. Personal Information.

You can browse some areas of (“the Website”) without being a registered user. However, certain activities do require registration. (You consent to the transfer and storage of your information by registering with

3. Use of Information.

Our primary purpose in collecting personal information is to provide you with a safe and user-friendly experience. For example, the Company may use your personal information to:

  • Improve our services and the Website’s content and layout;
  • Provide the services and necessary customer support you request;
  • Resolve disputes, collect fees, and troubleshoot problems;
  • Track and record customer satisfaction with our services;
  • Protect the Company against error and fraud;
  • Inform you of special promotions and announcements;
  • Enforce our agreements, terms, conditions, and policies; and
  • As otherwise described to you at the time of collection.

We may occasionally ask you to complete optional surveys. These surveys are used to improve and customize your experience with

The Company always provides you the ability to opt-out of further communication such as promotions and surveys; see the Opt-Out section below.

The Company does not share any of your personal information with outside organizations, companies, individuals, etc. The only exception to this standard is if such a disclosure is reasonably necessary to respond to any and all legal processes.

4. Links to Other Sites.

The Website may have links to other websites that may collect personally identifiable information about you. The Company is not responsible for the privacy practices of the content of those linked websites.

5. Safety & Security Precautions.

The Website has strict security measures in place to protect you and your information from fraud. Once your information is provided to Omnia Mechanical Group, we strive to ensure the confidentiality of your identity and information.

6. Opt-Out.

The Company provides you with the opportunity to opt-out of receiving promotional and other non-essential, marketing-related communications from Omnia Mechanical Group. If you would like to opt-out of these select communications, please see any of the Company’s email communications and follow the directions indicated.

7. Account Protection.

Your password ensures the security of your account. When choosing a password, the Company suggests using various characters. It is highly recommended that you do not disclose your password to anyone. (If you do disclose your password or your personal information with others, you are responsible for all actions taken in the name of your account.) If the security of your password is compromised for any reason, please contact the Company immediately.

8. Accuracy of Information

The Company does not guarantee the accuracy of information for any and all of its properties on the Website, and is not responsible for any errors or misrepresentations (made by Renters, the Client, or otherwise).

9. Cookies

The Company may place a small cookie on your computer’s hard drive. This allows us to personalize your use on the Website. In order to maximize the functionality and usability of the Website, you must set your browser’s preferences to allow both permanent and temporary cookies.

10. Changing Your Personal Information.

Should your personal information change, please immediately update your information on the Website. This will ensure the accuracy of our records. The Company does retain personal information from closed accounts in order to comply with law and collect and disburse any fees owed.

11. Third Parties

This Privacy Policy addresses only the use of information we collect from you. Since does not control the privacy policies of third parties, you are subject to the privacy policies of those third parties. It is advisable that you consult with the management of third parties before you disclose your personal information to others.

12. General

We may amend this Privacy Policy at any time by posting the amended terms on the Website. All amended terms are immediately effective after they are initially posted on the Website.

13. Privacy Policy Questions & Concerns

Questions and/or concerns regarding the Policy should be emailed to the following email address: