“Combination fan and heaters offer users relief from both warm and cool temperatures, all in one unit,” explains Brian Schaadt, business unit director at Lasko, a popular fan brand. “These units can be used year-round and never need to be stored away.” These combo units typically have enclosed blades like a regular fan, but they also feature some type of built-in heating unit, similar to a space heater. These features can typically be used separately, and some models allow you to use them in tandem.