Welcome to Heat Haven at Hart Park
Make the colder months a little cozier. Step inside, breathe deep, and reap the benefits of sauna bathing. The Heat Haven sauna park is Wauwatosa’s newest place to relax, recharge, and connect with the community—all while enjoying the timeless traditions of sauna bathing, socializing around the fires, and enjoying a handcrafted beverage. So, step in and find a new way to stay warm. Heat Haven is open late November through April 2026.
Located just south of the newly renovated Muellner Building in Hart Park, you’ll find three handcrafted, wood-fired, cedar-barrel saunas surrounded by the peaceful woods, the sounds of the river, and the scent of cedar filling the air. Outside of the saunas are fire pits and rinse stations for guests to cool down between sauna sessions.
Before, during or after your session, you can enjoy snacks, coffee, tea, mocktails and alcoholic beverages from the container bar. Plus, you can pick up sauna gear and hydration essentials there too.
At Heat Haven Sauna Park at Hart Park, guests move through a rhythm that’s part wellness ritual, part social adventure. Upon arrival, visitors check in with a team member who gives them a quick tour of the park and a cozy place to change. From there, it’s a 75-minute journey of heat, cool, and repeat—usually three rounds of sauna time, each lasting 10-15 minutes, followed by fresh air by the fire or a splash at the cooling station.
The sessions are self-paced and relaxed, guided by intuition, not a clock. Between rotations, guests sip tea or a handcrafted mocktail, chat with new friends, or simply listen to the crackle of the fire. It’s not about performance or perfection. It’s about presence.
After your sweat session, you’re just a short walk up the Oak Leaf Trail to the shops, restaurants and holiday experiences in The Village of Wauwatosa.

Muellner Building
The nearby Muellner Building offers ample parking for Heat Haven guests. There will also be movement classes hosted by local fitness trainers so that you can add some movement to your sauna sessions.

Whether you’re stepping in after a tough workout or winding down from a busy week, regular sauna sessions have been proven to help you:
- Reduce stress and boost mood by relaxing your body and mind
- Improve circulation and support muscle recovery after workouts
- Flush out toxins through sweating
- Enhance sleep and overall well-being
Whether you’re coming to be hot and unbothered or are bringing your friends for a social sweat, you’re in for a good time in a great location.



