Marey Power Gas 10L Digital Panel Tankless Water Heater delivers endless hot water with optimal energy efficiency! No electricity required! The Marey Power Gas 10L Digital Panel Tankless Water Heater is simple to install and includes auto ignition. Energy-saving design heats up in seconds and uses gas only while water is flowing. Available in LP and natural gas models. Things are heating up: Adjustable gas and water control knobs. Digital panel shows out coming water temperature.; Electric pulse ignition (2 D-cell batteries required; not included); Activates by water flow when faucet is turned on; Rust-proof... no water loss due to leaks; Anti-combustion and gas pressure safety protection; Works easily with low levels of water pressure; Applicable water pressure: 3.6 - 145.0 PSI; Hot water output per minute: 3.1 gallons per minute; Energy efficiency: 54% - 87%; Exhaust discharge mode: Flue duct type; Measures approx. 24" x 14" x 7". Weighs approx. 21 lbs. State Model. Advanced technology saves water and energy! Order Today! Marey Power Gas 10L Digital Panel Tankless Water Heater