Exploring Emergency Plumbing Services

Key Differences Between Tankless Water Heaters And Traditional Water Heaters

by April Rivera

The average water heater will last approximately 8 to 10 years, which means you may need to replace yours soon if you have had it this long. If your water heater stops working or if it is highly inefficient, you may want to shop around to find the best one to replace it with. As you look for a new one, you may wonder if you should choose a tankless system. These are good options in many ways, but it is important to know the differences between these systems and traditional systems before you buy one. Here are some of the main differences.

Upfront Cost

You will notice that purchasing a tankless system will be more expensive than purchasing a system that has a tank. It may also cost more for installation when replacing a traditional hot water heater with a tankless system. If you are looking for the most cost-effective option at this time, you may want to stick with a traditional water heater. If you are looking for more long-term efficiency, a tankless system might be a better option.

Type Of Energy Used

If you are looking for a system that operates on a specific type of energy, such as gas or electric, you will find that both types of systems can operate on either type of energy. This is good to know, simply because your energy type will not limit your options when choosing between these two types of water heating systems.

Energy Efficiency

Another good thing to compare is the efficiency of each type of system. Hot water is not something you can live without in your home, but there are ways to save money on producing hot water. According to Energy.gov, a tankless system is often 24% to 34% more efficient than a traditional system. Part of this reason for this is due to the differences in how and when hot water is produced.

With a traditional system, the hot water heater will produce hot water and store it in a tank. This hot water will be available for use at any time, and the system will replace the hot water as it is used. A tankless system does not store hot water. It only makes hot water when hot water is needed. When hot water is stored, it loses heat and energy, and this is one of the primary reasons tankless systems are considered more efficient.


While it may cost you more to get a tankless system, the system is likely to last longer than a traditional system. Most tankless systems will last around 20 years, and this is twice as long as a system that has a tank. In addition, the warranty that comes with a tankless system will usually be for 15 years, while a traditional system typically only comes with a six-year warranty.

Space Needed

One other factor that might be something to consider is the amount of space each type of system requires. A system with a tank will need a lot of space, simply because the tank is usually large enough to hold 30 to 50 gallons of water in it. With a system that has no tank, you will need less space. This is important if you are remodeling and are trying to save space in your home. This is also the reason tankless systems are often used in apartments and small homes.

If you need to replace your hot water heater for any reason, you may want to look further into both types. You can also learn more about both types by contacting a company that offers water heater replacement services.