A. O. Smith has announced the addition of X3 Scale Prevention Technology to its full line of residential condensing gas tankless water heaters.

The HTP Crossover Residential/Commercial Floor Water Heater is a revolutionary product and was designed to be the most highly efficient, affordable residential product in the industry.

The tanks are ideal for a variety of residential and commercial, solar hot water and heating applications.

The unit is currently available in a 125-gallon capacity for a variety of applications, both residential and commercial.

Named ProTerra for its unmatched efficiencies, this ENERGY STAR certified water heater is over 400 percent more efficient compared to standard electric tank-type water heaters.

The series uses a fully integrated pump to keep hot water close to even the farthest outlet in the home, minimizing the wait and, therefore, the waste of unused potable water down the drain.

The new product's advanced design features a digital touchscreen thermostat control and an all-welded tank that eliminates the need for seals and o-rings.

Extended protection, an industry first, applies to the EZTR50, EZTR75, EZ98, and EZ111 models, all specially engineered to streamline tankless-for-tank projects by reducing installation time and costs.

The Alliance LT can withstand aggressive water conditions without the use of an anode rod.