Rheem RTG-64XP 6.4 GPM Outdoor Series Tankless Propane Water Heater Minimum flow rate of .26 gpm, .40 gpm minimum activation flow rate, 150,000 BTU Includes UMC-117 remote control and 10-feet of thermostat wire Freeze protection to -30 degrees Fahrenheit Eligible for federal tax credits for energy efficiency Meets low nitrogen oxide emission standards