An integrated fluid heat exchanger comprising: an impeller assembly comprising: a first impeller body with a substantially circular shape and having at least a first annular opening (40, 40a-40d) therethrough annularly spaced from but adjacent to a first impeller body perimeter and positioned a first predefined distance from a center of the first impeller body; a second impeller body disposed substantially parallel to and connected to the first impeller body, the second impeller body having a substantially circular shape and at least a second annular opening therethrough that coincides with the at least first annular opening (40, 40a-40d) of the first impeller body; a plurality of impeller vanes extending axially from the first impeller body and away from the second impeller body, the plurality of impeller vanes positioned between a first body center and the first opening (40, 40a-40d); a plurality of second impeller vanes extending axially from the second impeller body and away from the first impeller body, the plurality of second impeller vanes positioned between a second body center and the second opening; at least one thermoelectric module disposed between the first impeller body and the second impeller body, the at least one thermoelectric module having a first substrate and a second substrate; a first heat sink (250a-d) connected to the first substrate and extending through the at least first annular opening (40, 40a-40d); and a second heat sink (250e-h) connected to the second substrate and extending through the at least second annular opening. an impeller assembly comprising: a first impeller body with a substantially circular shape and having at least a first annular opening (40, 40a-40d) therethrough annularly spaced from but adjacent to a first impeller body perimeter and positioned a first predefined distance from a center of the first impeller body; a second impeller body disposed substantially parallel to and connected to the first impeller body, the second impeller body having a substantially circular shape and at least a second annular opening therethrough that coincides with the at least first annular opening (40, 40a-40d) of the first impeller body; a plurality of impeller vanes extending axially from the first impeller body and away from the second impeller body, the plurality of impeller vanes positioned between a first body center and the first opening (40, 40a-40d); a plurality of second impeller vanes extending axially from the second impeller body and away from the first impeller body, the plurality of second impeller vanes positioned between a second body center and the second opening; a first impeller body with a substantially circular shape and having at least a first annular opening (40, 40a-40d) therethrough annularly spaced from but adjacent to a first impeller body perimeter and positioned a first predefined distance from a center of the first impeller body; a second impeller body disposed substantially parallel to and connected to the first impeller body, the second impeller body having a substantially circular shape and at least a second annular opening therethrough that coincides with the at least first annular opening (40, 40a-40d) of the first impeller body; a plurality of impeller vanes extending axially from the first impeller body and away from the second impeller body, the plurality of impeller vanes positioned between a first body center and the first opening (40, 40a-40d); a plurality of second impeller vanes extending axially from the second impeller body and away from the first impeller body, the plurality of second impeller vanes positioned between a second body center and the second opening; at least one thermoelectric module disposed between the first impeller body and the second impeller body, the at least one thermoelectric module having a first substrate and a second substrate; a first heat sink (250a-d) connected to the first substrate and extending through the at least first annular opening (40, 40a-40d); and a second heat sink (250e-h) connected to the second substrate and extending through the at least second annular opening.