Incorporate insulation principles to maximize warmth /minimize potential therm needs.
An elaboration on the HDT Box with modifications based on responses/ suggestions at:
Box would be elevated on storage crates, maximizing space needs. Vent hole/s could be located to minimize water seepage. Rigid insulation foam could be used- to be later recycled, or shallow, waterproofed, hay- bale- wafer units could be fabricated and assembled as an alternative
Backwards , truncated corporate logo optional, but such re-appropriations of text may allow for the temporary structure to remain as a free speech gesture.