The Brisk II air conditioner is best in class for any standard RV rooftop air conditioner for their weight, air flow, and capacity for various reasons. These include the large air openings which promote superior air flow and cooling capacity, while the EPP foam housing both reduces weight and also contributes to improved cooling. The Brisk is incredibly robust, components such as its carbon steel base have proven their durability coming through vibration tests lasting 30 hours and more! The optional heater function is ideal for use on cool evenings. Finally great care has been taken to reduce operating noise with motor compressor and evaporator bracketed together for vibration free quiet operation.