Water Heater Blog

The Pros and Cons of Getting a Tankless Water Heater

Oct 29, 2021 | Tankless Water Heaters

So, you’re thinking of getting a tankless water heater. The name is pretty self-explanatory, as this type of heater does not use a storage tank to operate. From that standpoint alone, you may already have an idea of whether or not you want one. 

Before you pick out the model of your choice, read up on the pros and cons of a tankless water heater. 

Pros of Going Tankless

1. No Hot Water Limit

Gone are the days of running out of hot water. With tankless heaters, you can get an endless supply of hot water. It still takes around two minutes to get the heat going, but once it’s up and running, you’re not limited. 

2. More Sustainable

Its design is built to be more energy-efficient. This makes it better for the environment because it conserves energy. Its on-demand system means it will only turn on if you are running hot water. It also ends up using less gas, and replacements don’t produce waste.

3. Long-Lasting

Tankless heaters usually have a lifespan that’s around twice as long as regular heaters. The average system can last anywhere from twelve to twenty-five years if properly maintained. 

4. Space-Saving

Because it doesn’t use a tank, a tankless water heater will use up less space and can be built smaller. In some cases, you can even install it outside of the home.

5. Cost-Efficient

Over time, this lessens the utility costs to run a heater. On average, it can even decrease gas consumption by up to $100. Plus, certain providers offer rebates for homeowners that switch to eco-friendly systems.

Cons of Going Tankless

1. Higher Upfront Cost

Because of its system, the tankless heater will cost more money upfront. It can cost up to thrice as much as a regular tank, so even if you save money on the utility bills, it can take about a decade to recover the difference in price. 

2. Compatibility Issues

Not all homes are suitable for a tankless heater. You will need to assess your home first, and even then, it may require you to retrofit certain things. This means you may be installing new lines and replacing pipes, adding to the initial cost.

3. More Maintenance

Another concern in regards to cost is how much maintenance tankless heaters need. They require annual maintenance to stay in good condition, and this need increases in areas with hard water.

4. Longer Installation

From the assessment to the actual installation process, tankless systems aren’t quick to get. If you’re in desperate need of a water heating system, you may need to be more patient. It will take a few days to install a tankless system.


There are many considerations you need to take when deciding whether or not to go tankless. If you’re willing to pay the upfront cost and are willing to perform the additional maintenance, a tankless water heater can really make your life better.  Just make sure you get an assessment first to see if it’s compatible with your home.

For expert water heater installation in Houston Texas, reach out to Houston Water Heaters. We specialize in tankless systems with a lifetime warranty, and our licensed plumbers can install regular tanks as well. Contact us to get an installation plan that works for you.

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