Overview
HOTWORX in O’Fallon, Missouri, is a 24-hour infrared fitness studio that combines heat, infrared energy, and exercise into efficient, virtually instructed workouts. Located on Highway K near the License Office, the studio offers 12 different infrared sauna sessions including hot yoga, pilates, barre, cycle, and HIIT. Workouts are either 15-minute high-intensity interval training or 30-minute isometric sessions, guided by certified virtual instructors. The facility also includes an FX Zone with free weights, bands, and ropes for additional training. Members use the HOTWORX Burn Off App to book sessions, track calories, and monitor progress with features like TrainingTRAX, DietTRAX, and group challenges. The studio is open 24/7 and consistently noted for its cleanliness and friendly staff. Many visitors appreciate the low-impact, private nature of the workouts and the supportive atmosphere. The infrared heat aids recovery and detoxification, making it a popular choice for those seeking a different approach to fitness.
Yoga Format
Studio Amenities
Studio Business Hours
| Day | Status | Time |
|---|---|---|
| Monday | Open | 11:00 am – 8:00 pm |
| Tuesday | Open | 11:00 am – 8:00 pm |
| Wednesday | Open | 11:00 am – 8:00 pm |
| Thursday | Open | 11:00 am – 8:00 pm |
| Friday | Open | 9:00 am – 6:00 pm |
| Saturday | Open | 9:00 am – 2:00 pm |
| Sunday | Closed | – |
Studio in Details
Overview
HOTWORX in O’Fallon, Missouri, is a 24-hour infrared fitness studio that blends heat, infrared energy, and exercise into a unique workout experience. Located on Highway K between Interstates 70 and 364, near the License Office behind Fritz’s Frozen Custard, the studio is easy to access. Members can use the facility around the clock, with virtual instructors guiding sessions via video screens. The patented sauna technology creates a 3D training environment—combining exercise, heat, and infrared—to accelerate metabolism and aid recovery. This approach appeals to those seeking an efficient, low-impact alternative to traditional gyms, with sessions as short as 15 minutes.
Workouts & Facilities
HOTWORX offers 12 infrared sauna workout types, including Hot Yoga, Hot Pilates, Hot Cycle, and HIIT. Sessions are either 15-minute HIIT or 30-minute isometric workouts, all led by certified virtual instructors. The FX Zone provides a functional training area with free weights, bands, ropes, and other equipment, supplemented by silent trainer videos for routines. The HOTWORX Burn Off App serves as a central hub: users can book sessions, track calories burned, monitor progress with an AI coach, and view a personalized avatar via TrainingTRAX. Additional app features include DietTRAX for meal logging and HOTSQUAD for group accountability.
Visitor Experience
Reviews consistently note the studio’s cleanliness and friendly, knowledgeable staff. Members appreciate the 24/7 access, which accommodates late-night or early-morning schedules. Many describe the workouts as effective yet low-impact, with options for beginners through advanced levels. The infrared sauna is praised for reducing inflammation and improving skin. Staff members are remembered for their warmth and willingness to explain the equipment and classes. The atmosphere is described as supportive and non-intimidating, making it a good fit for those who prefer a smaller, private setting over a bustling gym. Safety measures are also appreciated for after-hours visits.