The electric heat exchanger, from the series D-EWT-Mono, consists of a pressure resistant shell, made with nonflammable plastic, which makes it suitable as an electro-technical product. All other components are well thought out and made of first-class materials. It operates with a single-phase heating element in Incoloy 800 and additional ASTM B117 nano-coating, which makes it suitable for higher salt concentrations and very effective against calcification. It comes equipped with safety thermostat 50°C, built-in flow switch as low water protection, as well as two wall mounts. The electric heat exchanger is extremely versatile - for heating whirlpools, and similar facilities. It works perfectly for permanent and mobile facilities. It is easily and simply connected to the water circuit with the handy gluing socket D.50.