airthereal electric tankless water heater, 9kw, 240volts - endless on-demand hot water - self modulates to save energy use - small enough to install anywhere - for sink and faucet, evening tide series airthereal never run out of hot water again. if you have ever had the misfortune of your water turning cold in the middle of your shower, you will never experience that again after installing an electric tankless water heater. the airthereal electric tankless water heater comes in 3 different sizes to tackle your biggest hot water needs. instead of a set amount of water being stored in your water heater tank, tankless water heaters heat water on demand so you always have hot water. the size is 90% smaller than a traditional water heater and since you don’t have to store the hot water, you can save up to 50% on your water heating utility bill. with a simple touchscreen control panel and extensive safety protection features (high-temp protection, dry heating protection, and electrical leakage protection) you can enjoy hot water on your schedule and take as many hot showers as your heart desires. package includes: 1× user manual 1× tankless water heater 2× mounting hook 4× wall plug 4 × screw