Especially in case of increased capacities, the operation costs may be reduced significantly with the use of hot water heated vaporizers working with plate heat exchangers. These compact vaporizer units include all required components such as shut off valves, control valves, solenoid valves, safety equipment, thermometers, liquid level sensors, pressure regulators. The vaporizer units are completely mounted in a cabinet or in a container including piping. They are suitable for use in hazardous areas. The FAS dry-type vaporizers FAS 2000 are available as compact unit including all required components such as shut off valves, control valves, safety equipment, pressure regulators set to the requested outlet pressure. All vaporizer units are designed according to customer specification and can be delivered either in cabinet design, in a container or as a compact skid unit including storage tank