Vehicle HVAC System for Using Passenger Compartment Heat for Operation

A HVAC system for a vehicle, comprising:

• a heat exchanger configured to be disposed within a vehicle, the heat exchanger comprises a first surface and an opposite second surface, wherein a body of the heat exchanger is disposed between the first and second surfaces, wherein the body includes a first portion and a second portion that is different from the first portion;
• a first air inlet configured, when installed within the vehicle, to receive air that flows therein from a blower through the first surface, wherein the blower can receive either air from a passenger compartment of the vehicle and/or air from outside of the vehicle, wherein air is directed to flow from the blower into a first portion of the heat exchanger;
• a second air inlet different from the first air inlet, the second air inlet disposed to direct air received therethrough into the second portion of the heat exchanger, the second air inlet configured to receive air that flows therein from within a passenger compartment of the vehicle;
• the heat exchanger is disposed to direct air from the first air inlet through the first portion of the heat exchanger and the heat exchanger is disposed to direct air from the second air inlet through the second portion of the heat exchanger simultaneously;
• a divider positioned across the heat exchanger at a position that establishes a boundary between the first and second positions of the heat exchanger, wherein the boundary prevents or substantially prevents air flowing through the first portion of the heat exchanger from flowing into the second portion of the heat exchanger within a body of the heat exchanger and the boundary prevents or substantially prevents air flowing through the second portion of the heat exchanger from flowing into the first portion of the heat exchanger within the body of the heat exchanger.