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HOTWORX Achieves 800 Studio Milestone as Infrared Fitness Movement Accelerates Worldwide

HOTWORX opened its 800th studio in Salem, New Hampshire, on Dec. 2, 2025, owned and operated by longtime local residents Phillip and Michelle Sundman.
The brand has expanded through franchising and rising consumer demand, with HOTWORX recently signing a master franchise agreement in Mexico and growing in Dubai, Canada, Saudi Arabia, and Ireland.
Members use a patented infrared '3D Training' method blending heat and exercise, featuring 30-minute isometric workouts, 15-minute High-Intensity Interval Training sessions, and Functional Exercise Zone.
Stephen Smith said `Reaching 800 studios is a moment that really makes us stop and appreciate how far this brand has come`, while Phillip and Michelle Sundman said they are honored to bring infrared training's health benefits to Salem residents.
With additional international markets targeted for 2026 and beyond, HOTWORX serves over 250,000 members and plans further global growth.

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HOTWORX Achieves 800 Studio Milestone as Infrared Fitness Movement Accelerates Worldwide

This marks another major growth milestone for HOTWORX just 8 years after launching in 2017The infrared fitness franchise continues rapid expansion across the U.S. and globally fueled by strong demandThe 800th location is in Salem, NH owned by Phillip and…

13 days ago·Sweetwater, United States

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