UPCOMING EVENTS SEE ALL HOTWORX Boulder (Be Three, LLC) Share: Fitness - Body & Mind HOTWORX Boulder (Be Three, LLC) Visit Website Request Info 3000 Pearl Pkwy STE 1600 Boulder, CO 80301 (970) 889-1590 About About HOTWORX is a 24 HR Infrared Fitness Studio that offers 11 virtually instructed workouts inside of an infrared sauna.