Attempting to bring electric water heaters into the current era, civil engineer-turned-inventor Jerry Callahan says he has created a novel water heater that eliminates traditional modes of failure while increasing energy efficiency—and it has Wi-Fi.
Instead of using traditional heating elements, Callahan’s tankless heater, called the Model 1 by Heatworks, uses an ohmic heating process in which electric current is passed through water between 19 graphite electrodes.