TECHNOLOGY FOCUS - MECHANICAL ENGINEERING - Preferred Component: The collection vessel is open to the interior of the enclosure so that any combustible gas component entrained in the water can evaporate to the interior of the enclosure. The integrated fuel processor apparatus and enclosure further includes ventilator for evacuating the combustible gas component in the enclosure, gas detection device for detecting the presence of a combustible gas in the enclosure, and separator for separating the water from the hydrogen-rich reformate. The fuel processor comprises a combustor connected to the ventilator for receiving and combusting the combustible gas component, and process water tank having an outlet (32) for withdrawing process water from the process water tank. The gas detection device has processing mechanism for generating a signal when combustible gases are detected. The water is directed to the collection vessel. The outlet is connected to the collection vessel. Preferred Process: The separation of water from a reformate stream further includes:(1) directing the water out of the collection vessel to a drain;(2) detecting the presence of a combustible gas component in the interior of the enclosure;(3) generating a signal when a combustible gas component is detected;(4) evacuating a combustible gas component from the interior of the enclosure;(5) combusting the evacuated combustible gas component;(6) combusting the water-depleted hydrogen-rich reformate;(7) receiving a fuel cell exhaust mixture having exhaust gas and product water;(8) separating the product water from the exhaust gas;(9) directing the product water to the open collection vessel;(10) combusting the separated exhaust gas;(11) withdrawing process water from a process water tank; and(12) directing the withdrawn process water to the open collection vessel.The manufacture of integrated fuel processor apparatus and enclosure further includes providing a gas detector sensor in the enclosure for detecting the presence of a combustible gas component in the interior of the enclosure, providing a connection (22, 24, 28, 34, 36) to a fuel cell for receiving the fuel cell exhaust, and providing a collection vessel with a drain connection.