Abstract: The present invention solves two main problems inherent to anesthesia design and delivery. By controlling the evaporation of each drop of the liquid agent by providing the required heat at the point of evaporation, an extremely accurate delivery of vaporized anesthestic can be delivered safely to the patient and by using an inexpensive microcomputer, peltier junction or heating element and a liquid tight solenoid or a position controllable stepper motor, the whole machine is much easier and less expensive to construct. This coupled with the simple design of the body being cast in aluminum urethane, the present invention has substantially reduced the cost of manufacture while actually increasing the accuracy of it's output.