An ice maker comprising: an ice tray suspended within a housing; a thermoelectric device that has a cold side thermally coupled with a bottom surface of the ice tray to freeze water retained therein and a hot side opposing the cold side; a heat sink thermally coupled with the hot side of the thermoelectric device; a barrier about a periphery of the ice tray to define a first air chamber above the ice tray and a second air chamber below the ice tray; the heat sink extending within the second air chamber; wherein the barrier is configured to restrict cold air flow from entering the first air chamber; characterized by further comprising: an electrical drive body rotatably coupled to a transverse axis of the ice tray, wherein the electrical drive body is configured to oscillate the ice tray about the transverse axis relative to the housing; a shroud member coupled with the ice tray and spanning beneath the heat sink, wherein the shroud member is configured to maintain contact with the barrier to restrict the cold air flow from entering the first air chamber when the ice tray oscillates, and wherein the shroud member is open over a top of the ice tray; an intake duct member coupled with the housing proximate the second air chamber, wherein the intake duct member is configured to dispense the cold air flow over the heat sink; and an exhaust duct member coupled with the housing proximate the second air chamber, and wherein the exhaust duct member receives the cold air flow after it flows over the heat sink. an ice tray suspended within a housing; a thermoelectric device that has a cold side thermally coupled with a bottom surface of the ice tray to freeze water retained therein and a hot side opposing the cold side; a heat sink thermally coupled with the hot side of the thermoelectric device; a barrier about a periphery of the ice tray to define a first air chamber above the ice tray and a second air chamber below the ice tray; the heat sink extending within the second air chamber; wherein the barrier is configured to restrict cold air flow from entering the first air chamber; characterized by further comprising: an electrical drive body rotatably coupled to a transverse axis of the ice tray, wherein the electrical drive body is configured to oscillate the ice tray about the transverse axis relative to the housing; a shroud member coupled with the ice tray and spanning beneath the heat sink, wherein the shroud member is configured to maintain contact with the barrier to restrict the cold air flow from entering the first air chamber when the ice tray oscillates, and wherein the shroud member is open over a top of the ice tray; an intake duct member coupled with the housing proximate the second air chamber, wherein the intake duct member is configured to dispense the cold air flow over the heat sink; and an exhaust duct member coupled with the housing proximate the second air chamber, and wherein the exhaust duct member receives the cold air flow after it flows over the heat sink. an electrical drive body rotatably coupled to a transverse axis of the ice tray, wherein the electrical drive body is configured to oscillate the ice tray about the transverse axis relative to the housing; a shroud member coupled with the ice tray and spanning beneath the heat sink, wherein the shroud member is configured to maintain contact with the barrier to restrict the cold air flow from entering the first air chamber when the ice tray oscillates, and wherein the shroud member is open over a top of the ice tray; an intake duct member coupled with the housing proximate the second air chamber, wherein the intake duct member is configured to dispense the cold air flow over the heat sink; and an exhaust duct member coupled with the housing proximate the second air chamber, and wherein the exhaust duct member receives the cold air flow after it flows over the heat sink.