: Indicates "Heating Mode." This is active during the initial heat-up, after high usage, or during standby recovery. Steady White Light
A built-in 7-day programmable timer and a light-sensor-driven sleep mode ensure the unit isn't wasting power during off-hours. Operational Insights from the Manual rheem 71000 manual better
: You can set your desired output (typically 120°F) and it stays there without the unit "deciding" to lower it for efficiency. Self-Modulating Power : Indicates "Heating Mode
without running out, a common complaint with the 50-gallon hybrid tanks. Space Savings after high usage
: A small amount of steam discharge is normal during the initial 18–30 minute calibration cycle.