Richmond® High Efficiency Tankless Water Heaters make it easy to make the decision to go tankless. Our products offer continuous hot water, while providing money and energy savings. Richmond® tankless save money and energy by only heating water when you need it, no need to heat a large amount of water in a tank and keep it hot until it's needed. Exclusive! Hot-start Programming™ ensures the unit is in a ready state between back-to-back usage, minimizing any cold-water bursts. Setting the water temperature or monitoring the unit's status is easy with the digital display. Should maintenance be required, the unit's self-diagnostic system will display a maintenance code, which makes trouble-shooting quick, accurate and less expensive. For peace of mind, this product is backed by an industry leading 15-year warranty. 15-year heat exchanger, 5-year parts, and 1-year labor.