Quilt Systems, Inc.

Sami Ur-Rehman Shad

Matthew Aaron Knoll

Robert Irving Luan

Leon Zilun Zhang

Certain embodiments of an indoor unit (e.g., an indoor unit for a heat pump system) include: a housing comprising an exit-point on a wall-side of the housing, the exit point comprising a refrigerant line and the housing having a height of less than 11 inches; a heat-exchanger connected to the refrigerant line, wherein a portion of the refrigerant line that is external to the heat exchanger, and that runs internal to the housing and between the heat exchanger and an outdoor unit, runs substantially within a height-depth plane of the housing prior to exiting the housing and traverses less than 25% of a width of the housing; and a fan, wherein the indoor unit is configured to exchange at least 8000 BTUs/hour with a room and wherein the indoor unit produces a noise of 48 dBA or less.

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Fremont, CA, United States of America

Sami Ur-Rehman Shad