Heat transfer system for warehoused goods

An installation for warehousing palletized product, comprising:

• a pallet assembly comprising:
• a pallet;
• and
• a plurality of vertically stacked rows of cases disposed on the pallet and providing an airflow pathway through the vertically stacked rows of cases containing the product;
• and
• a pallet racking assembly comprising:
• a pallet receiving space sized and configured to receive the pallet assembly;
• an airflow chamber including an air inlet and an air outlet;
• an air handler configured and positioned to direct air into the airflow chamber from the air inlet and exhaust air from the airflow chamber through the air outlet;
• a wall disposed between the pallet receiving space and the airflow chamber, the wall having an airflow opening sized and positioned to be engaged by the pallet assembly when the pallet assembly is received within the pallet receiving space, the airflow opening defining an unobstructed airflow when the pallet assembly is absent from the pallet receiving space and an operational airflow when the airflow opening is engaged by the pallet assembly, the operational airflow less than the unobstructed airflow;
• and
• an air dam positioned adjacent the airflow opening and configured to at least partially obstruct the airflow opening, the air dam and the airflow opening cooperating to define a vacant-bay airflow when the pallet assembly is absent from the pallet receiving space, the vacant-bay airflow less than the unobstructed airflow.