This system consists of an intake of warm, humid air, an intake of outdoor air, a shell of food-grade, waterproof-and-airtight sheet metal, a long coil of copper pipe, a ground pipe for neutralizing air temperature, a chute for cool, dry are to sink into a root cellar, some kind of container or pipe to catch the condensation drip and some pipes to connect the parts.
The basic idea is that warm humid air from the inside of a dwelling would be directed to a large pipe made of a material with fairly high specific heat.The pipe leads the air into the shell of sheet metal, which has the coiled copper pipe in it. The copper pipe has outdoor air running through it, pulled by the suction of the rising warm air and of a rocket stove running to the ground pipes that lead into the house.