The Zanotti small capacity systems are designed for vans and small trucks and can run off the vehicle's 12 volt  battery. These units can be used in  8  to 10 ft. boxes and the units can deliver 1,800 to 3,800 Btu/hr

These units are ideally suited for smaller capacity applications such as small panel vans and custom applications

The benefits of Battery Drive Units are as follows:

• Units are powered on voltage generated from the truck alternator or  on a deep cycle battery
• No belts, pulleys or external compressor -fewer moving parts means reduced maintenance costs
• Reduced install time
• Optional 120V circuit allows unit to be plugged into a regular 20A wall outlet