Ventilation systems and related methods

A ventilation system comprising:

• an enclosed grow zone comprising a plurality of growing pathways positioned between a return wall and an opposing plenum wall;
• a loading elevator positioned within the enclosed grow zone configured to selectively load plants into one growing pathway of the plurality of growing pathways;
• at least one air handler configured to supply an air flow to the enclosed grow zone;
• at least one heat pump coupled to the at least one air handler and to at least one dry cooler;
• and
• a cold fluid loop and a warm fluid loop each containing a heat exchange fluid, the cold fluid loop and the warm fluid loop each fluidly and separately coupled to the at least one air handler and the at least one heat pump to cool and heat the air flow, respectively,
• wherein the at least one heat pump is operable in a first mode of operation in which the heat exchange fluid is cooled by the dry cooler and used to cool the air flow to remove moisture before the air handler supplies the air flow to the enclosed grow zone.