Titan N-42 tankless water heater and its compact size allows

and its compact size allows installation basically everyplace

This control of your water heater is integrated in this circuit board

but also the temperature of the water being delivered

The TITAN N-180 is rated at 18 KW

Most likely your water heater has other different heating elements beside this one

Titan N-42 tankless water heater and its compact size allowsThe Titan N 42 incorporates new space age technology and features a faster and more accurate temperature sampling system, a manual resettable thermostat and new air water deferential analyzing system to prevent dry starts, (which is a key problem for other tankless systems on the market today). By heating water only as it is needed the TITAN N 42 point of use tankless water heater eliminates the need for bulky water heater that heat water