Living in Arizona has its perks—dry heat, beautiful scenery, and winters that don’t feel like winter. But even though our climate is pretty warm, water heaters are still important for our comfort. So, gas vs. electric water heater: which is better? It’s a common question we hear from homeowners.
And it’s a good question—especially as energy prices continue to go up. The type of water heater you choose really does matter.
Even so, we’ve helped lots of homeowners across Arizona with all kinds of plumbing choices, and to be sure—there’s more to it than just saving on your energy bill. It depends on your home, your lifestyle, your budget, and even how long you plan to live in your house.
In this blog, we’ll break down the pros and cons of gas vs electric water heaters, and help you figure out which one makes the most sense for your Arizona home.
What is an Electric Water Heater?
An electric water heater uses electricity to heat your water. Your home’s standard electrical system generally powers these units and is commonly found in tank-style and tankless models. They tend to have a smaller footprint and are often easier to install, especially in homes that don’t have access to a natural gas line.
Electric water heaters send electricity through metal heating elements, which warms the water to your preferred temperature. The system shuts off once that temperature is reached and turns on again as needed. Simple enough?
They’re ideal for smaller households or homes with lower hot water demand and tend to run quietly without venting. However, electricity costs can increase, especially during Arizona’s blazing hot summers when everyone’s energy use spikes.
What is a Gas Water Heater?
Gas water heaters use natural gas or propane to heat your water. In traditional models, there’s a burner at the bottom of the tank that warms the water sitting above it. Tankless gas heaters work a bit differently—they heat the water as it flows through, so you get hot water on demand.
These heaters are a popular choice in homes that already have a gas line. They usually heat water faster than electric ones and can be a great fit for bigger households that use a lot of hot water. Since natural gas is often cheaper than electricity in many parts of Arizona, gas water heaters can save you money in the long run.
That said, there are a few downsides. Gas systems need proper ventilation to safely release fumes, which can make installation a bit more complicated and costly. Also, they should be checked regularly to make sure there aren’t any gas leaks or other safety issues.
Gas vs. Electric Water Heaters: What Works Best in Arizona Homes?
Initial Cost
If you’re looking at the upfront cost, electric water heaters are usually the cheaper option. They’re simpler, easier to install, and don’t need a gas line or a vent, which helps keep the cost down. But just because it costs less at first doesn’t mean it’ll stay that way. Electric water heaters can be more expensive to run, especially if your household uses a lot of hot water. Those energy bills can add up over time.
Gas water heaters, on the other hand, usually cost more to install. If your home doesn’t already have a gas line, that can make things more complicated. Plus, you’ll need proper ventilation. Still, gas tends to be cheaper than electricity in Arizona, so you might save money in the long run.
And if you’re thinking about going tankless—whether it’s electric or gas—keep in mind that these systems may need maintenance down the road, just like models that have a tank. They’re energy-efficient, but like anything else, they can wear out and need repairs or replacement.
Energy Efficiency and Heating Capabilities
Gas water heaters heat water faster and do a better job keeping it hot—great for bigger households. If your family is often showering, doing laundry, and running the dishwasher at the same time, a gas heater could help keep energy bills lower. Electric water heaters can still be a good choice, especially for smaller homes. Some newer models even have features like energy-saving modes or smart thermostats to help cut down on power use.
Arizona’s warm climate also makes a difference. Since the groundwater here isn’t super cold, both types of heaters don’t have to work as hard to heat it up. That gives electric heaters a little boost they might not get in colder places. But if you’ve got a big household or need a lot of hot water often, gas is usually the more energy-efficient pick.
Safety Considerations
Like any home appliance, water heaters come with their own safety concerns—and knowing what to look out for can help you avoid serious problems.
Gas water heaters need regular check-ups to maintain safety. Since they run on gas, there’s always a small risk of gas leaks or carbon monoxide buildup if something isn’t working properly. You’ll also want to keep an eye on the pilot light and burner to make sure they’re functioning the way they should. These types of issues can be dangerous, which is why professional installation and regular inspections are so important. A licensed plumber will know how to install the unit safely and check for any warning signs during routine maintenance.
Electric water heaters might seem safer because they don’t burn fuel, so you won’t have to worry about gas leaks or carbon monoxide. But they still come with risks. If the wiring is done incorrectly, or if the unit is damaged during installation, it can lead to electrical shocks or even fires. Power surges from lightning or poor electrical setups can also cause problems if the system isn’t properly protected.
The good news is that both types of water heaters can be very safe—as long as they’re installed by a licensed professional and maintained regularly. Don’t skip routine check-ups, and make sure you’re working with someone who knows the ins and outs of the system you’re using. It’s a simple step that can give you peace of mind and keep your home safe.
Installation and Maintenance
Electric water heaters are usually easier to install. They don’t need a gas hookup or venting, which simplifies the process. That’s great news for homes that weren’t built with gas lines or don’t have much room to spare. Maintenance is pretty straightforward, too. Aside from occasionally flushing tank models to remove sediment, electric models don’t need much attention unless something breaks down.
Gas water heaters are a little more complex. Because of the combustion process, they require proper venting to eliminate gases like carbon monoxide. That adds to the installation time and cost. You’ll also need to monitor the pilot light and gas lines. Planning to switch to a tankless water heater? Installation becomes even more technical. Always consult a professional to ensure your new system is installed correctly and safely.
Space Requirements
Space matters, especially in Arizona homes where garages and utility closets often double storage areas. Electric water heaters are generally more compact and can be installed in tighter spaces, like under staircases or inside closets. This makes them ideal for townhomes, condos, or older homes with limited space.
Gas units, by contrast, need breathing room. You’ll need to allocate extra space because they require ventilation and often have a larger tank. In some cases, outdoor installation is possible, but you’ll still need to make sure venting and weatherproofing are handled correctly. If you’re renovating or building a new home, it’s worth factoring in these space requirements during the planning phase.
Ready to Install a Gas or Electric Water Heater? Call Custom Plumbing of Arizona Today
Still trying to decide between a gas vs electric water heater for your Arizona home? Let us help you decide! At Custom Plumbing of Arizona, we’ve been helping homeowners just like you make smart, confident plumbing decisions since 2001. If you live in
Greater Phoenix, our licensed professionals are ready to guide you through the selection, installation, and maintenance process. Call us today at 602-866-2665 to schedule a free inspection.