Check the listing for details. 7.9 GPM 180K BTU Propane Tankless Water Heater, Indoor Dual-Wall Direct Vent. Color: White, Condition: New. Listed at 899.99 USD. 25" x 16.3" x 7.3", Wall-mounted and compact design, For whole-home or commercial use. Natural Gas, 180,000 BTU, Indoor, 120V AC, Up to 7.9 GPM hot water flow, UEF over 0.81. On-demand endless hot water for 3-6 points simultaneously depend on inlet water temp. Gas/Water connection: 3/4" NPT, Dual-wall Vent 3" and 5", Water pressure 15-150 PSI, APP Remote Operation, Smart Wi-Fi Connectivity, Real-time monitor and convenient operation. Precise temperature control +/-1F, Temp range 95-149 F, No risk of CO leakage. Oxygen-free copper exchanger, superior thermal conductivity, No indoor oxygen consumption. LED panel display, Advanced Sealed Combustion System preserves indoor air quality. CSA certified, Set ECO mode, Windproof, IPX4 Waterproof, Anti-freeze, Overheat, Dry-burning, Flue Obstruction.