During extreme heat waves, proper fan placement and operation become essential for maintaining comfortable indoor temperatures without air conditioning. Strategic positioning of window fans can create cross-ventilation, drawing cool outside air while expelling hot indoor air. Understanding airflow dynamics, optimal fan settings, and timing your ventilation during cooler hours significantly improves cooling efficiency. This guide provides practical techniques to maximize fan effectiveness during dangerously high temperatures, helping you stay safe and comfortable when traditional cooling systems aren't available.

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