The Richmond RMTEX-27 Tankless Electric Water Heater has a flow rate of 6.6 gallons per minute (GPM)12. This means it can provide a continuous supply of hot water at that rate, making it suitable for various applications: Standard Hand Sink: Approximately 0.5 GPM. Washing Machine: Typically 1 to 1.5 GPM. Kitchen Sink: Ranges from 1 to 2 GPM. Dishwasher: Requires 1 to 2 GPM. Water-Saver Shower Head: Around 1.5 GPM. Standard Shower Head: Approximately 2.0 GPM. Bath Tub: Requires up to 4 GPM. Whole-Home: Can handle a flow rate of up to 6 GPM. So, whether you’re washing dishes, taking a shower, or filling up the bathtub, this tankless water heater has you covered!