The system includes a tank for receiving water, a microwave unit having a plurality of sides, one of the sides having a first opening and a second opening, the microwave unit housing a vessel for receiving water from the tank, the vessel having a lid including an inlet port extending through the first opening and an outlet port extending through the second opening, the inlet port of the vessel being positioned in fluid communication with the tank, a magnetic stirrer having a stir bar immersed in the water contained in the vessel, and a condenser unit having a natural convection condenser positioned within a first tube, an adapter, and a heat exchange coil having an inlet configured for receiving water from the tank and an outlet for discharging water to the tank, the condenser unit being positioned in communicating relation to the outlet port of the vessel.