The compact and powerful BOSCH WH27 Tronic 6000 will supply your entire house with hot water when and where you need it. This tankless electric water heater works "on-demand" to eliminate the wait for hot water. This heater works at 97% thermal capacity, reducing any stand by water loss. The built-in flow sensor ensures a constant output temperature across all applications. This heater delivers hot water to 1-3 major applications at a time, anywhere from a residential home to an office space. GPM output at temperature rise of: 75 degrees: 2.4 output, 60 degrees: 3.0 output, 45 degrees: 3.5 output.