With the Rheem Tankless Water Heater RTG74XP, showers start hot and stay hot for as long as the shower is running, plus the system is much smaller than normal tank water heaters and uses much less energy. The Rheem RTG74XP tankless hot water heater is an Outdoor unit powered by Liquid Propane that turns on when you open a hot water faucet and turns off when you close the faucet, so the energy consumed is only for the hot water being used. Since there is no storage of hot water and thus no constant heating and re-heating of stored hot water, you're not wasting energy heating water when you don't need it. Key features include: 7.4 gpm at a 45ºF temperature rise; electronic ignition to increase efficiency; remote control thermostat; digital temperature display; built-in electric blower to force exhaust gas outside; environmentally friendly low NOx burner; and a 5-year limited warranty on parts (12 years on heat exchanger.) The Rheem Tankless Water Heater RTG74XP is a revolution in home water heating that provides instant gratification with the satisfaction of being environmentally friendly and cost efficient at the same time! Temperature Increase / Gallons Per Minute:Flow Rate at 45ºF Rise: 7.4 gpm Flow Rate at 50ºF Rise: 6.6 gpm Flow Rate at 60ºF Rise: 5.5 gpm Flow Rate at 77ºF Rise: 4.3 gpm Flow Rate at 90ºF Rise: 3.7 gpm Warning: This water heater is not suitable for use in manufactured (mobile) homes!
