The Regent tankless water heater is available in three models.
March 25, 2026
The Regent unit features a Lochinvar-exclusive single water-tube, stainless steel heat exchanger and an internal circulating pump to maintain high-velocity flow.
The global water heater market, valued at over $29 billion in 2023, is expected to reach approximately $40.09 billion by 2030, driven by demand for energy-efficient systems controlled by smartphone apps. However, new U.S. Department of Energy regulations mandating only high-efficiency condensing water heaters may present challenges for manufacturers.
The water heater manufacturer Rinnai America Corporation has voiced its support for a resolution passed Thursday by the U.S. House of Representatives to reverse a Department of Energy ban on non-condensing instantaneous gas water heaters set to go into effect in 2029.
A.O. Smith’s Concentric Vent Non-condensing Tankless Water Heater line with X3® Scale Prevention Technology features the company’s X3 Scale Prevention.