http://tinyurl.com/okvrmd7<P>Rinnai RL94eN Natural Gas Tankless Water Heater, 9.4 Gallons Per MinuteProduct Review<P> Click on the link for more reviews<P>9,900 ? 199,000 BTU<P>Comes standard with MC-91-1US Digital Controller with Error Code Indicator<P>83% Thermal Efficiency<P>Residential Temperature Settings: 98�F - 140�F<P>Commercial Temperature Settings: 98�F - 185�F (commercial controller must be purchased separately)<P>