The recommended clearance behind an upright freezer or refrigerator for adequate airflow typically ranges from 2 to 4 inches (5 to 10 cm). This clearance allows for proper ventilation and helps prevent overheating of the appliance. Sufficient airflow is essential for the refrigerator or freezer to operate efficiently and maintain the desired temperature.
When positioning your appliance, it's important to consider the manufacturer's recommendations as well. The user manual or documentation provided by the manufacturer will often specify the recommended clearance for your specific model. If available, follow those guidelines for optimal performance and to avoid any potential issues related to insufficient airflow.