A two-phase heat exchanger includes a hot side heat sink, a cold side heat sink, and one or more thermoelectric modules disposed between the hot side heat sink and the cold sink heat sink such that hot sides of the one or more thermoelectric modules are thermally coupled to the hot side heat sink and cold sides of the one or more thermoelectric modules are thermally coupled to the cold side heat sink. The two-phase heat exchanger is configured to be mounted at an angle from vertical.