Abstract: A cooling and/or heating system is provided that may include an air conditioning and heat pump assembly (refrigerant-based) housed within an enclosure. Ducts are provided to deliver air cooled by the air conditioning unit or air heated by the heat pump to one or more users positioned in the enclosure. A reversing valve is provided for directing the flow of pressurized refrigerant to one of the condenser and evaporator. When operated in heating mode, the refrigerant flow is reversed by the reversing valve and heated air is delivered through the same duct work. The air conditioning and/or heat pump assembly is controlled by a vending module to be operated by a user. The system is particularly well suited to include the sale of secondary retail and information services and items at populated public locations, e.g., a beach, city street and parks, and at other venues, e.g.