The Marey Aquamatic Shower Tankless Water Heater is the perfect solution to supply endless hot water a point of. It is also called water heater on demand, because it heats water only when needed, saving energy. As it is installed in the point of use, water is heated immediately when the hot water faucet is opened, and there is no heating loss as the heating element is at the point of use, providing instant hot water. Its compact design saves space and is very easy to install, saving also in installation costs. It has also a winter/summer knob so you can regulate your desired output temperature per season. Marey has been on the water heating business since 1955, bringing tradition and innovation together.