Abstract: A convective flow control device that can maintain hot water at hot water pipe connections at remotely located faucets in homes and buildings. The convective flow device has a two part housing that encloses a dual purpose poppet in an internal circular bored chamber formed by the two piece housing. The said internal circular bored chamber has one or more fluid passageways that communicate with the hot and cold water end of the device, thereby providing for a flow path from the hot water connection to the cold water connection. The said dual purpose poppet has a cylindrical shape, and slides within the internal circular chamber to make contact with the cold water end of the housing, or to make contact with the hot water end of the housing in response to the direction of flow through the device.