Rheem Prestige? RTGH-95DVLN-2 is a high efficiency condensing indoor natural gas tankless water heater designed for continuous hot water. Industry leading low flow activation with a minimum flow rate of .26GPM and minimum activation flow rate of .40GPM ensures hot water is received even in low demand situations. Ultra Low NOx burner meets SCAQMD rule requirements of safety with low emissions. While our exclusive Guardian Overheat Film Wrap prevents our units from reaching the dangerous temperatures others can. Add in our maintenance notification settings, self-diagnostic system and EcoNet enabled mobile app feature (additional kit available), buying the Rheem Prestige tankless water heater makes perfect sense. New 2" venting with band connections allow up to 150' with a 3" PVC or 60' with a 2" PVC pipe. Included are also a built-in condensate neutralizer, digital remote control and 10ft. of thermostat wire. Can be used with up to 5 bathrooms depending on inlet temperature; .93UEF (.96EF Canada), 199,000BTU efficiency. Professional installation is required otherwise warranty void. Warranty: 12yr heat exchanger, 5 yr parts and 1 yr labor.