Takagi T-H3S-DV-P Condensing High Efficiency Propane Indoor Tankless Water Heater, 8-Gallon Per Minute Endless hot water, On-demand usage, Compact, Space saving, Energy conservation Computerized safety features, No pilot light to have to worry about Satisfies the 2012 SCAQMD Rule 1146.2 for Ultra-Low NOx Emissions