Tankless with X3™ Scale Prevention Technology

X3™ Scale Prevention Technology prevents scale build-up, meaning no more descaling maintenance and longer product life.

Tankless with X3™ Scale Prevention Technology

X3™ Scale Prevention Technology prevents scale build-up, meaning no more descaling maintenance and longer product life.

An expert in both water heating and treatment, A. O. Smith has combined the two technologies to achieve unparalleled protection.

X3™ Scale Prevention Technology prevents scale build-up, meaning virtually zero lifetime descaling maintenance and stretches the lifetime of the product by up to three times.

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X3™ Scale Prevention Technology

Scale is the #1 enemy for tankless water heating technology. With typical use, unprotected gas tankless water heaters begin to accumulate scale from water conditions over time. Scale reduces efficiency and increases annual cost of operation by requiring annual maintenance. Regular descaling is required to keep typical gas tankless water heaters operational.

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X3™ Scale Prevention Technology

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Benefits of Gas Tankless Water Heaters with X3™ Technology

Extends Product Life Up To 3x Longer

The new X3™ Scale Prevention Technology eliminates scale build-up in the heat exchangers, extending the life of the unit.

Maintains Like-New Performance

Testing proved our tankless models with X3™ Scale Prevention Technology maintained like-new efficiency and performance after 15 simulated years. Models without the X3™ technology had a reduction of efficiency and performance by 10% in just 1.5 simulated years.

Never Descale Again

X3™ Scale Prevention Technology eliminates the need for regular descaling.

Scale-Inclusive Warranty Coverage

An industry first. Unlike competitive warranties, A. O. Smith covers scale-related failures should they occur, with their 15-year limited warranty.

Get Instant Hot Water

Tankless with X3™ Scale Prevention Technology are complete with recirculation pump capabilities with the use of a cross-over valve (sold separately).

How it Works

How X3™ Scale Prevention Technology Eliminates Scaling Problems:

Condensing gas tankless water heaters with X3™ Scale Prevention Technology are attached directly to the water line. When you open a hot water tap, the burner in your gas tankless water heater activates. As water flows through the unit, it quickly reaches the preset temperature by rapidly absorbing heat from the singe heat exchanger. Our patent pending X3™ Scale Prevention Technology disrupts the regular process of scale formation by changing the structure of the scale to smaller crystals that do not adhere to the heat exchanger surface and therefore can be more easily flushed out with regular use. This eliminates the need for regular descaling and extends the unit’s life up to three times vs. a tankless model without X3™ Scale Prevention Technology.

Due to this direct heat exchange, these condensing gas tankless water heaters provide long-lasting, on-demand hot water. When the water tap is turned off, the unit shuts down to conserve energy.

How X3™ Scale Prevention Technology Eliminates Scaling Problems:

Due to this direct heat exchange, these condensing gas tankless water heaters provide long-lasting, on-demand hot water. When the water tap is turned off, the unit shuts down to conserve energy.

FAQs

Will this tankless water heater perform the same in every region?

The gas tankless with X3™ Scale Prevention Technology has been tested in various locations around North America to ensure its performance can hold up in the harshest water conditions. Luckily, these units boast a warranty that protects homeowners from scale-related failures for added peace-of-mind.

Can a recirculation pump be used with models that use X3™ technology?

Yes, our tankless models with X3™ Scale Prevention Technology are capable of being used with a recirculation pump when a cross-over valve is used. Cross-over valve is sold separately.

Which applications are most suitable for tankless models that include the X3™ Scale Prevention Technology?

Residential single-family applications with hard water concerns. Hard water is everywhere. Many regions have hard water which adversely affects plumbing systems, including water piping, water fixtures and the water heating system.

Are the tankless units with X3™ Scale Prevention Technology compatible with Easy-Link™?

No, this model is designed for residential single-family applications where Easy-Link™ is not required.

Are these models compatible with 2" venting and 1/2" gas lines?

Yes! The Adapt™ gas tankless water heater is our first unit that is compatible with 2″ venting and 1/2″ gas lines.

Does this model include a pressure relief valve?

Yes, our Adapt™ X3™ models come with a pressure relief valve.