A. O. Smith, a leader in water heating and treatment, has combined its two areas of expertise to launch a new residential gas tankless product line with X3 Scale Prevention Technology. This new feature extends the life of the unit three times longer than traditional tankless, making it the first tankless product that maintains "like-new" performance without requiring regular scale-related maintenance.

A. O. Smith Gas Tankless units with X3 Technology were designed with the installer in mind. The scale-preventing construction means that contractors will never need to perform scale-related maintenance, thus obsoleting the need for costly isolation valves. Further, the combustion system operates on a ½-inch gas line and vents with 2-inch PVC.

This Next Gen product features the industry's first-ever "Peace of Mind" limited warranty. Unlike competitive warranties, this 15-year limited warranty covers scale-related failures should they occur.

"A. O. Smith has been a long-time innovator in the water heating industry, but in recent years we've focused heavily on water treatment as well," said David Chisolm, vice president of marketing for A. O. Smith. "It makes sense that these two technologies can strengthen and improve each other. We're excited to debut a product that will change the way the industry thinks about tankless water heating."

A. O. Smith's tankless featuring X3 Technology is available in three sizes with maximum BTU/H inputs of 160K, 180K, 199K. All models come with an integrated recirculation pump providing the benefit of instant hot water. Like all A. O. Smith condensing gas models, products with X3 Technology are ENERGY STAR qualified with UEFs up to 0.93.