Tank vs Tankless Water Heater in Phoenix
Replacing a water heater is a ten-to-fifteen-year decision. In Phoenix, hard water and hot garages change the math, so the right answer is not the same as it is elsewhere.
The case for tankless
Tankless heaters never run out of hot water and take up almost no space, which suits households that use hot water in bursts. They typically last longer than tank units when maintained.
The catch in Phoenix is hard water: a tankless unit must be descaled on schedule or scale will choke it and void the warranty.
The case for a tank
A traditional tank costs less up front, installs faster, and tolerates hard water somewhat better with an annual flush. For many Phoenix homes it is still the practical choice.
In an unconditioned garage, where summer temperatures soar, a well-insulated tank holds up fine.
How to decide
Match the heater to how your household actually uses hot water, your budget over ten years, and your willingness to keep up with descaling.
A good plumber will run those numbers with you honestly rather than push the higher-ticket option by default.
Need a real answer for your system?
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