Patent ID: 8270822

Claim:
An aircraft use water heater comprising a tank section for heating liquid stored therein and a controlling section for controlling the heating of the liquid by an aircraft power source, wherein the aircraft use water heater includes: an inflow inlet formed in a bottom face of the tank section through which the liquid flows into the tank section; a baffle plate that is provided at an upper part of the inflow inlet and that prevents the liquid from moving in a straight manner; a helical coil-type heater in the tank section, the helical coil-type heater has a helical axis provided in a direction parallel to the bottom face of the tank section; and a liquid outlet formed in an upper part of a wall face of the tank section, liquid flowing from the inflow inlet to the tank section collides against the baffle plate to flow in a different direction parallel to the bottom face of the tank section and moves to the lower part of the helical coil-type heater and then is moved upwardly, while being heated, in the vicinity of a helical coil section of the helical coil-type heater and the heated liquid is caused to flow through the liquid outlet.