【Reversible Function】 The reversible ceiling fan allows you to switch the direction of the indoor ceiling fan from downward airflow in summer to upward airflow in winter, to reclaim lost heat from the ceiling and reduce energy costs.【Wood Ceiling Fan Dimension】Diameter: 52"" Height: 14.5""/19.5""/35.5"" optional (From ceiling to bottom of fan housing, including 5""/10""/24"" downrod optional) Weight 12 lb. Please follow the product manual for installation.