Description: Low Water Pressure Start: This gas water heater is equipped with a water control valve that allows it to start even under low water pressure, ensuring a constant high pressure water flow Energy Saving: The Tankless Water Heater features energy saving, which can turns on when we open the hot water tap and automatically shuts off when we close the tap Non Backflow Chimney: This Instant Hot Water Heater with Non Backflow Chimney is great for barns, cabins, outdoor instant hot water and road trip Water Pressure Protection:Gas water heater has an overpressure protection function that automatically reduces pressure when the water pressure is too high LED Water Temperature Indicator: Real time digital display of water temperature prevents burns from first high temperatures Size Chart: 49cmx29cmx16cm/19.29inchx11.42inchx6.30inch Package Includes: 1 Water heater 1 Instructions 1 Screws 1 Adapter Note: Please allow slightly errors 1-2cm differences due to manual measurement.