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Hot Water Without the Wait or the Worry


Offering an industry-best, 25-year warranty, the Noritz EZ Series uses on-demand recirculation to eliminate the wasteful wait for hot water.

What does a homeowner most want in a water heater?

#1 — Hot water at the expected temperature without delay at the tap or shower.

#2 — Uneventful, uninterrupted, perfect performance year after year after year…if possible, for as long as they live in their home.

Noritz now offers a way to achieve both of those critical objectives with a single product — its EZ Series of residential condensing tankless water heaters. Immediate delivery of hot water at the tap is available by combining one of the four EZ models with Noritz’s new RPK-EXT External Pump Kit, which provides the time-, water- and energy-saving benefits of hot-water recirculation.

At the same time, all four models in the EZ Series — EZTR50, EZTR75, EZ98, and EZ111 — come protected by an unprecedented 25-year warranty on the high-performance, dual stainless-steel heat exchangers inside these heaters. Made effective January 1, 2019, this warranty is a full decade longer than the longest water heater warranty in North America today and more than double Noritz’s previous warranty on these four products.

A quarter-century isn’t a “lifetime,” of course. But 25 years should easily cover the tenures of most Americans’ in their homes. American mobility has slowed over the past decade and a half, but the median stay was still only 9 years in 2016 and 2017, according to the National Association of Realtors1.

In other words, the new Noritz 25-year warranty is two and a half times the current duration of modern Americans in their homes. In fact, that much protection should enhance the value of a home when the time comes to put it up for sale.

Hot-water recirculation: One of modern life’s minor, but no less irritating, rituals is waiting for the hot water to arrive at the shower. Not only is this daily exercise in futility personally annoying, but it also wastes thousands of gallons of perfectly good water down the drain in the typical American home every year.

The problem can be easily solved by continuously recirculating warm water from the water heater throughout the home’s supply piping. Such systems route the water close enough to the shower head, so that it has just a short distance to travel when the shower is activated; that is, the water arrives at the outlet almost “instantaneously.”

The problem with continuous “recirc” systems: They keep the water heater running…and running, so that the circulating water stays warm. As a result, a household inevitably consumes more energy, even as it sends fewer gallons of cold water uselessly down the drain.

Like a conventional recirc system, Noritz’s new RPK-EXT kit delivers hot water to a faucet, shower or appliance in seconds, eliminating the usual water- and energy-wasting wait.

Again like the conventional recirc system, a dedicated return line routinely dispatches water sitting in the hot-water line back to the tankless water heater for reheating and recirculation.

Save energy and water: So what’s the difference between the two types of systems? The RPK-EXT recirculates warm water on demand — that is, only when it is actually needed. The kit also includes an RC-9018M Commercial Remote Control with customizable run times to match a household’s hot-water usage. The intent is to time pump operation for when hot water is most likely to be used; e.g., for morning showers, evening baths, etc.

By heating and delivering water strictly when someone turns on the hot water, the RPK-EXT Kit not only eliminates the wasteful wait for hot water, but it also minimizes power consumption and reduces energy costs.

Couple the RPK-EXT Kit with a 25-year EZ Series tankless water heater, and you have a hot water-delivery system designed to maximize both personal comfort and system efficiency year after year — most likely, for as long as you live in your current residence.

And isn’t that what every American wants for their home?