Abstract: The present invention utilizes the combination of a vehicle having a passenger compartment, a heating and cooling air-conditioning system, and an air vent opening for providing conditioned air to the passenger compartment. Within the storage compartment of the vehicle, a food container is placed which has an air conduit connected thereto. The air conduit is also connected to the air vent opening on the dash of the vehicle so that conditioned air is directed to the internal food compartment of the food container. A fan may be provided within the conduit for facilitating the movement of air from the air-conditioning vent of the vehicle into the food compartment of the container. A modified form of the invention utilizes collapsible container walls and collapsible shelves within the container.

Abstract: The means of this invention is in combination with an underground sewage reservoir having a water-holding strata extending therearound adapted to receive water from the reservoir. A perforated conduit extends around the reservoir and through the strata and is adapted to receive water from the strata. A circulating fluid line extends through the conduit so that the circulating fluid will tend to assume the temperature of the water in the conduit. The circulating fluid line is operatively connected to a heat pump means.