Convection based temperature assured packaging system

A packaging system for shipping a temperature sensitive payload, the packaging system comprising:

• a housing comprising a bottom panel, a top panel located above and in spaced vertical alignment with the bottom panel, side panels extending vertically between the bottom panel and the top panel, and end panels extending vertically between the bottom panel and the top panel, the housing defining a product compartment for holding the payload;
• and
• a plurality of channel members located within the product compartment and affixed to at least two of the side panels or end panels, each channel member comprising a channel member housing, the channel member housing comprising a planar inner facing panel and a planar outer facing panel adjacent one of the side panels or end panels and connected to the inner facing panel by planar channel side panels, each channel member further comprising one or more internal panels arranged in a rectilinear configuration and disposed within the channel member housing, wherein
• the channel member housing has an open top end and an open bottom end spaced apart from the housing top panel and housing bottom panel;
• and
• the channel member housing and the internal panels define a series of adjacent, laterally spaced outer channels having a rectangular cross sectional area and a series of adjacent, laterally spaced inner channels located on a side of the outer channels away from the housing and having a rectangular cross sectional area.