Tankless Water Heater Vs. Standard Water Heater with Tank


Considering a tankless water heater? Many families today are. So we wanted to take the time out to break down the positive and negative aspects of making the switch to a tankless system versus going with a traditional water heater.


For more information  call (972) 492-5369  today so we can set up an appointment for one of our tankless water heater specialists to come to your home and provide you with a detailed estimate for a tankless or traditional water heater!  


Tankless Water Heater Versus Tank Water Heater

Water heaters can be a costly investment for home owners that you’ll be living with for over quite some time. In fact, in most cases a water heater typically lasts between 10 and 15 years. That’s why when it’s time to equip your new home, or replace your old water heater it’s important to consider cost, efficiency, and longevity of your new water heater.

We’ve put together this comparison of storage water heaters vs tankless water heaters to help you decide on the type of water heater that’s best for you. We’ll examine the pros and cons of tankless and traditional water heaters so you can make an informed decision for your future!Check out what your neighbors think of our plumbing services when you click here.

Tankless Water Heaters Explained

Tankless water heaters, also known as on-demand water heaters, use high-powered burners to rapidly heat water as it runs through a heat exchanger delivering it directly to your faucets or shower without using a storage tank. There are both electric and gas powered tankless water heaters. According to consumer reports, a tankless unit is 22% more efficient than a traditional tanked water heater when it comes to overall energy consumption. 

Big Advantages to Losing the Tank and Moving to Tankless

Naturally, having hot water whenever you want it without ever having to wait is a big advantage all on its own.

Since there is no tank to fill and refill, tankless water heaters give you an endless supply of hot water, so it doesn’t matter how many people are using it at any given time.

Another benefit of not having the tank of hot water waiting all the time is lower energy bills, because it is only heated when you need to use it. Many homeowners also appreciate the extra space in their attic or garage after the bulky water tank is removed. 


How are “Traditional” Water Heaters Different?

Traditional tanked storage water heaters are the most commonly found type of water heaters in homes today. In a gas powered setup the components include an insulated tank, typically holding 30-50 gallons of water, a gas control valve and a thermocouple. Alternatively, in an electric setup there is only a water storage tank, two heating elements and a thermostat control. 

A natural gas tanked water heater uses almost 50 percent less energy than the electric variety. However, they do have an upfront cost that is a bit higher than electric models. But the difference is still negligible compared to the lifetime savings generated by the heater. Traditional heaters also feature a temperature and pressure-release valve that opens when either the temperature or the pressure exceeds preset levels.


Tankless Energy Efficiency Explained

Homeowners with on-demand water heaters typically use  50 gallons or less of hot water each day. They also enjoy an average of 25% more energy efficiency over traditional water heaters. However, f you use more hot water daily (around 86 gallons or more), then you may only get to enjoy an additional 8-10% energy efficiency.

Purchasing a tankless water heater will cost you a quite a bit more than a traditional water heater. However, tankless varieties are known to last longer than conventional water heater models which translates to a 20+-year useful life, as compared to storage tank types which last only 10 to 15 years before falling apart due to corrosion or part failure of some sort. Traditional heaters are also prone to failure that causes leaks and could possibly flood your home.  

Tankless Energy Efficiency Explained

The idea of installing a Tankless Water Heater has a ton of appeal to homeowners. As you can see there are many upsides to installing them in your home. However we wish to educate our customers about the process of installing the heater so that you will have a better overall understanding of the ramifications involved in the installation of these heaters. 

Tankless Water Heaters are much different from the traditional water heaters we have today. As such, the process of installing one is a bit different. You cannot just easily swap the traditional heater for the tankless by removing one and hooking the other up. In most cases a new vent has to be ran because the venting for a tankless unit is PVC pipe and not metal like the traditional heater vent pipe. Additionally, the water hook ups often have to be re-worked and set up properly for the tankless units. Tankless units also typically require a flush kit to be installed for maintenance purposes.  All of these things requires more labor and can make installing a tankless heater quite a bit more costly than replacing your traditional heater with another traditional heater. 

If you’ve been noticing fluctuations with the hot water in your household, or if you aren’t getting any hot water at all, call Jennings Plumbing Services at  (972) 492-5369 in Carrollton, TX and we will send out a technician to find the problem and provide you with the result you need. 

We hope that this information has aided you in your decision. If you have any additional questions please give us a call!

We are knowledgeable local experts in both standard water heater repair and installation as well as tankless water heater installation and repair services. 

We are proud to offer these services to Dallas, Carrollton, Frisco, Lewisville, Denton, Little Elm, The Colony, McKinney, Plano & more. 

Unsure if we provide service to your area? Give us a call now or use our contact form to see if we can come help you in your area today!


Jennings Plumbing Services
2433 Lacy Ln. Suite #107 
Carrollton, TX 75006

Phone: 972-492-5369
Hours: Mon. – Fri. 8:30 am – 5:30 pm 


Colorado Master Plumber
License #600280

Texas Master Plumber License#20326

Texas Master Residential Fire Suppression License#20326