NEW YORK—According to 27-year-old Alex Wilson, the five-blade ceiling fan in his apartment’s common room is making the two-bedroom living space a veritable winter wonderland, providing him with an enchanting arctic sanctuary from the triple-digit temperatures outside. “Brrr, it’s like Christmas in here!” Wilson said as the ceiling fan oscillated above, its icy vortex of wind making the fifth-floor apartment feel as chilly as a midwinter’s day. “If anything, it’s too cold. What if I don’t have enough blankets to keep me warm at night?” At press time, Wilson was making some hot cocoa and settling in to watch Miracle On 34th Street.