Abstract: A unit for independently storing liquids and heating and cooling in separate liquid containers that is adaptable for mounting in a vehicle, and preferably shaped to fit over the transmission hump of a vehicle floor. The heating and/or cooling means is a separate thermoelectric junction unit mounted to each container and powered by the electric supply of a built-in battery of the vehicle. The spigot of each container is connected to the outlet of a separate pump so that the spigot may be located above the bottom of the container. The thermoelectric junction of two tanks may be connected so that the passage of electricity through the connected junctions serves to cool one tank and heat the other. Alternatively, each junction may be fitted with a separate heat sink or cold sink.