Homeowners in Phoenix, AZ are making some room in their homes by removing their clunky old water heater tanks and having Zest Plumbing & Drain upgrade them to tankless water heaters. These energy saving units offer an uninterrupted hot water supply, lower servicing costs, and typically much longer times between new tankless water heater installation than with tank-based units. They also help homeowners avoid concerns about tank leaks and ruptures that older, corroding tank-based hot water heaters sometimes have.