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Gas Tankless | Tankless Pros Az | Phoenix, Az

Gas Tankless

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Gas Tankless Water Heaters

Here is our gas tankless water heater page. Out of the 11 known gas tankless brands of water heaters found in America, we have chosen the best brand for Arizona, Navien; this is the only brand with a dual stainless steel heat exchanger and has proven to be the most reliable and longest-lasting than the rest. Click here to learn more about Navien gas tankless water heaters, approved for Scottsdale, Phoenix, Glendale, and surrounding areas.

Did you know?

Navien gas tankless has a 15-year warranty on the heat exchanger, and this is the only part that, if it fails, would cause you to replace the whole unit; Navien's reliability can last up to 30-yrs with proper maintenance. Dependable and trouble-free, you can choose what's best for your Family and Home.


We are the number one Gas Tankless Water Heater installers in the Phoenix area.

The idea of a gas tankless water heating system is that it heats your water as you need it instead of heating up water that’s stored in a large tank. In Europe and Japan, tankless water heaters have actually been the norm since the early 70s, and they’re finally beginning to gain popularity in the US as well.


Tankless water heaters last for around 25-30 years with proper maintenance, and they can also save you a huge amount of money each month while conserving natural gas. A tankless water heating system can indeed cost more than tank heaters, and they may require upgrades to your natural gas line or your venting system. But for the right Phoenix home, tankless water heaters can easily pay for themselves.

How Tankless Water Heating Systems Work

To understand exactly how tankless water heaters work, let’s first review how standards water heaters work,

Traditional water heaters store water in their large tanks, where it’s heated and held until needed. The tank continually heats the water so that it’s ready when you need it, meaning that it needs to maintain high temperatures constantly 24/7 (365 days a year) The energy that your water heater spends heating water you’re not needed is called “standby heat loss.”


Tankless systems get rid of the problem of standby heat loss altogether. They’ll only heat water when you need it—which is why they’re also sometimes referred to as “on-demand” water heaters. Eliminating that wasted energy makes tankless water heaters much more efficient than their tank-type counterparts.


Tankless gas water heaters function by heating a set of coils (heat exchanger) to extreme temperatures. As cold water passes through those coils, it’s then heated by the flame, and out comes hot water. So tankless water heaters will provide you with instant hot water, and much less energy will have been used to get it to you.

Should You Make the Switch?

When you’re deciding whether or not it’s worth it for your Arizona home to switch from your current tank-type water heater to a tankless unit, you’ll have to take several factors into account. Here are some benefits and drawbacks of tankless water heating systems.

  • Navien tankless water heaters will most likely get you a $300 federal tax credit.

  • They’re much more efficient and can save as much as 40% of fuel costs.

  • They take up much less space than tanks. They can easily be installed on walls or even outdoors.

  • They can last up to 30 years with proper maintenance.

  • They give you clean, unlimited hot water whenever you need it for as long as you need it.

  • They cost two times as much as traditional water heaters.

  • If the power goes out, you have no hot water until the power comes back on.

  • Some brands recommend servicing every 1 to 2 years; Navien needs servicing every 2 to 3 years.

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