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When it comes to upgrading your water heating system, one of the key decisions you’ll need to make is whether to go with a gas or an electric tankless water heater. Both options have their advantages and disadvantages.

Understanding the difference between electric and gas tankless water heaters is crucial in making an informed choice that suits your household needs and preferences. Are you ready to get started? Let’s go over everything you need to know about gas vs. electric tankless water heaters in more detail below.

Gas Tankless Water Heaters

Gas tankless water heaters are powered by natural gas or propane. They rely on a burner to heat the water as it flows through the unit. The heat exchanger in a gas tankless unit is responsible for heating the water instantly, providing a constant supply of hot water on demand. These heaters are known for their high flow rate, making them ideal for larger households or properties with high water usage.


  • High Flow Rate: Gas tankless water heaters are capable of delivering a large volume of hot water at once, making them suitable for homes with multiple bathrooms or heavy hot water demands.
  • Quick Heating: The heat exchanger in gas models heats the water rapidly, ensuring you have hot water whenever you need it.
  • Well-Suited for Large Homes: Due to their high flow rate, gas tankless water heaters are often preferred in larger households.


  • Installation Costs: Gas tankless units generally have higher installation costs due to the need for proper ventilation, gas lines, and safety considerations.
  • Higher Initial Cost: The upfront cost of purchasing and installing a gas tankless water heater tends to be higher compared to electric models.
  • Maintenance: Gas tankless water heaters require regular maintenance to ensure the burner and heat exchanger function efficiently.

Electric Tankless Water Heaters

When learning the difference between electric and gas tankless water heaters, it’s important to have a clear understanding of how both systems work. So, what about electric-powered units?

Electric tankless water heaters, as the name suggests, use electric coils to heat the water as it passes through the unit. They are compact and don’t require ventilation, making them easier to install in various locations within your home. However, they may have limitations when it comes to providing a high flow rate of hot water.


  • Lower Initial Cost: Electric tankless water heaters are generally more affordable to purchase and install compared to their gas counterparts.
  • Space-Saving: These units are compact and can be installed in smaller spaces, making them suitable for apartments or homes with limited room.
  • Energy Efficiency: Electric models have high energy efficiency, as they only heat water when needed, reducing standby energy losses.


  • Limited Flow Rate: Electric tankless water heaters might struggle to keep up with the hot water demands of larger households, especially during the simultaneous use of multiple fixtures.
  • Potential Overloading: If your home’s electrical system is not equipped to handle the high power requirements, using an electric tankless water heater could lead to overloading.

Making the Right Choice for Your Needs

As you can see, there’s more than one difference between electric and gas tankless water heaters. This means that it can be difficult to find the right solution for your home.

When deciding between a gas vs. electric tankless water heater, consider factors such as your household size, hot water usage patterns, available energy sources, and budget.

  • Household Size and Water Usage: If you have a large family or anticipate heavy hot water usage, a gas tankless water heater might be the better choice due to its higher flow rate.
  • Energy Source: Determine whether your home is equipped with a natural gas or propane connection. If not, an electric model might be the more practical option.
  • Initial Cost vs. Long-Term Savings: While gas tankless water heaters have higher upfront costs, they might lead to long-term savings on energy bills due to their efficient heating process. Electric models, on the other hand, are more budget-friendly initially.
  • Installation Considerations: Assess the installation costs and requirements for both options. Gas units need proper ventilation and gas line installation, while electric units demand adequate electrical capacity. If you want to learn more about your options, contact Rite Way to explore our line of water heaters in Tucson, AZ.

Install a Tankless Water Heater Today!

The choice between a gas vs. electric tankless water heater depends on various factors, including your household’s size, hot water needs, energy sources, and budget constraints. Consulting with a professional plumber or HVAC technician can provide personalized insights into which type of tankless water heater is best suited for your home.

Now that you know the difference between electric and gas tankless water heaters, it’s time to weigh your options. Are you ready to make a decision? Rite Way offers a range of water heaters, including tankless options. If you’re looking for a tankless water heater in Tucson, AZ, or the surrounding area, consider our expertise and services. Contact us today!

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